初中英语语法顺口溜+专项练习题

  语法记忆非常复杂,但如何通过一些有趣的方法来记忆或许会容易许多,下面是小编给大家带来的初中英语语法顺口溜+专项练习题,希望能够帮助到大家!

  初中英语语法顺口溜+专项练习题

  1. 英语的词类

  句子要由词组成,

  英语词类有十种:

  句中成分用实词,

  名、代、动、副、数、形容;

  冠、介、连词和感叹,

  虚词附加或沟通。

  词类功能掌握了,

  造句之时好运用。

  2. 语序歌

  主、谓、宾、表同汉语,

  定语有同也有异。

  状语位置更特殊,

  不能全和汉语比。

  3. 肯定句变一般疑问句

  have和be提句首,

  其它助词Do开头。

  时间、人称由do变,

  动词只把原形留。

  谓语助词有几个,

  第一助词提句首。

  4. 肯定句变否定句

  否定句中加not,

  放在be和have后。

  其它要加动词do,

  do的后面加not,

  时间、人称由do变,

  动词原形总保留。

  谓语若是助词多,

  not紧跟第一个。

  5. 名词的所有格

  名词只变数,

  不分主宾格。

  人和动物类

  可变所有格。

  撇(’)后加s,

  相当汉语“的”。

  时间、距离等,

  也变所有格。

  6. 名词变复数

  单数变为复数式,

  加上“s”统言之。

  下列结尾名词后,

  要加“s”先加“e”:

  发音[∫][t∫][s]和[z],

  或是辅音加“o”时。

  有些名词变复数,

  词尾变化要注意:

  “y”前字母是辅音,

  一律变“y”为“ie”;

  遇到“f / fe”,

  有时需要变“ve”

  少数名词不规则,

  特别情况靠硬记。

  7. 时间名词前所有介词的速记

  年月周前要用 in,

  日子前面却不行。

  遇到几号要用“on”,

  上午下午又是“in”。

  要说某日上下午,

  用 on 换 in 才能行。

  午夜黄昏用 at,

  黎明用它也不错。

  at 也在时分前,

  说“差”用 to,

  说“过”要用 past。

  8. 介词用法歌

  介词加宾语,

  才能有实意。

  表、定、状、宾、补,

  词组在句里。

  9. 介词顺口溜

  in 在……里,

  out 在……外,

  在旁边的是 beside,

  靠近的为 by。

  on 在……上,

  under 在……下,

  above 在上头,

  below 在底下。

  10. be的用法歌

  动词be,

  变化大,

  “I”用“am”“You”用“are”,

  Is用于它(it)、他(he)、她(she)

  复数一定要用“are”,

  切莫用错闹笑话。

  11. 动词的时态

  四种时间各四式,

  联想对比便于记。

  时间现在和过去,

  各自还有将来时。

  一般、完成、进行式,

  完成进行是四式。

  四四共有十六种,

  看来复杂掌握易;

  除去have / be以外,

  动词变化有规律。

  12. 动词形式的变化

  动词根本是原形,

  变化形式有四种:

  原形词尾加“s”,

  现在第三单人称;

  过去原形加“ed”,

  过去分词也相同;

  原形加上“ing”,

  现在分词或动名。

  原形词尾加“s”,

  如同名词复数式。

  若加“ed / ing”,

  以下情况要注意:

  词尾有 ie 只加 d,

  Ing去掉无声 e ;

  词尾 ie 变成 y ,

  然后再加 ing ;

  辅音之后y结尾,

  Y要变 i 加 ed;

  现在分词不变y,

  直接加上ing;

  词尾重读闭音节,

  结尾辅音都双写,

  r 做结尾也一样,

  重读音节 r 双写;

  结尾字母若是“t”,

  不是重读也双写。

  过去分词过去式,

  不按规则也有些。

  13. 动词不定式不带to的动词

  五看(notice,observe,see,look at,watch),

  三使役(have,let,make),

  二听(hear,listen to),

  一感觉(feel)。

  按:在上述动词后做宾语补语用的不定式不带to。

  14. 非谓语动词

  动词不做谓语用,

  不定、分词与动名。

  to 加原形不定式,

  词组可做名、副、形。

  分词现在和过去,

  相当副词和形容。

  原形加上“ing”,

  动词具有名词性。

  15. 基数词变序数词(之一)

  基变序,有规律,

  词尾字母 tdd 。①

  八减 t,九减 e,

  f 要把 ve 替。②

  ty 把 y 变成 i ,

  记住th前有个e。③

  ① 指first、second、third。

  ② 指eight去掉t,nine去掉e,five和twelve去掉ve加上f。

  ③ 指twenty→twentieth等。

  16. 基数词变序数词(之二)

  第一、二、三要全变,①

  其余“th”加后边,②

  “th”里有例外,

  你需格外记明白:

  八减 t,九减 e,③

  字母 f 代ve,④

  ty 变 tie。⑤

  ① one-first,two-second,three-third。

  ② four-fourth,seven-seventh,hundred-hundredth。。

  ③ eight-eighth ,nine-ninth。

  ④ five-fifth,twelve-twelfth。

  ⑤ twenty-twentieth,sixty-sixtieth。

  17. There be的位置和用法

  说明何时何地有,

  there be在主语前。

  随着主语第一个,

  be的形式做变换。

  18. be going的用法

  be going 是助动词,

  后跟加 to 不定式。

  说明“准备”或“就要”,

  时间人称只变 be。

  19. have+got

  have 作为动词“有”,

  助动词也有have;

  have got 惯用语,

  got 可有也可无。

  若变否定疑问,

  去掉 got 再加 do;

  或把 have 提句首,

  not 加在 have 后。

  20. 以or结尾的词

  售票员班长(照)镜子,

  蓖麻教授(找)医生。

  按:有些同学常把-or结尾的词误拼为-er结尾的词。

  初中课本只有六个以-or结尾的词。它们是:doctor,monitor,conductor,mirror,castor,professor。

  21. 以f(e)结尾的名词复数

  以f(e)结尾的名词,在中学课本里,出现了不少。其名词复数形式:有的直接在-f(e)后加s;有的要改-f(e)为ve再加-s;个别单词上述两种形式均可(如handkerchief→handkerchiefs或handkerchieves)。似乎不易记住这些规则,可只要记只下面这首顺口溜,相信你就不会觉得难了。

  妻子持刀去宰狼,

  小偷吓得发了慌;

  躲在架后保己命,

  半片树叶遮目光。

  按:顺口溜中的黑体字是初中阶段学过的以-f(s)结尾的名词:wife(妻子),knife(小刀),wolf(狼),thief(小偷),shelf(架子),self(自己),life(生命),half(一半),leaf(树叶)。这九个词变复数时,都是改-f(e)为ve再加-s。由self构成的复合词,其变化与self相同(如myself→ourselves;yourself→yourselves;himelf,herself,itself→themselves)。

  初中英语语法专项练习题(附答案)

  一、词类练习题

  ㈠、可数名词与不可数名词

  基础题组训练(五题)

  1、Theold man feeds four ___.

  A. piggs B. piges C. pigs D. pig

  2、Pleaseremember to give the horse some tree___.

  A.leafs B. leaves C. leaf D. leave

  3、Wouldyou like something to drink, ___or coffee?

  A.tea B. fruit C. bread D. meat

  4、Mr.White has a beautiful garden with many___ in it.

  A. flowers B. grass C. villages D. water

  5、Thereare seven ___ in a week.

  A. dayes B. days C. dayies D. day

  拔高题组训练(十题)

  1、—Mom, could you pass me some___? It’sdelicious.

  —OK,but only a little.

  A.butter B. apples C. tomatoes D. sandwiches

  2、—What’s in the cupboard?

  —Afew ___, but little ___.

  A. apples; coffee B. coffee; apples

  C. apple; coffees D. coffees; apples、

  3、Hegave us ___ on how to protect eyes.

  A. some advices B. some advice

  C. an advice D. a advice

  4、Thereare ___ on my desk.

  A. three paper B. three pieces of papers

  C. three pieces ofpaper D. three papers

  5、Agroup of ___ will visit the museum tomorrow.

  A. Englishman B. American

  C. Australian D. Chinese

  6、Thefarmer raised ten ___.

  A. sheeps B. deers C. horse D. cows

  7、Whynot give Linda some ___? She has failed in Chinese several times.

  A. notice B. suggestion C. advice D. warning

  8、Whenwe saw Liu Xiang’s face, we knew ___ was bad.

  A. some news B. anews C. the news D. news

  9、Iwonder why ___ are interested in action films.

  A. people B. peoples C. the people D. the peoples

  10、Thereis good ___for you. I’ve found the watch.

  A. news B.ideas C. messages D. thoughts

  疑难题组训练(五题)

  1、Ithink the teenagers should try to improve their living ___.

  A. activities B. skills C. memory D. success

  2、—Mum, something is wrong with my teeth. I can’t

  eat anything.

  —Whatabout seeing a ___ at once?

  A. designer B. dentist C. director D. detective

  3、Mike and his friend are going to the ___ to see the

  new action movietonight.

  A. bookshop B. restaurant C. concert D. cinema

  4、Theygot much ___ from those new books.

  A. ideas B.photos C. information D. stories

  5、Weoften use the mobile phone to send text ___ to our friends.

  A. menus B.messages C. advice D. warning

  附加答案:

  1—5 CBAAB; 1—10 AABCD; DCCAA

  1—5 BBDCB

  ㈡、代词

  基础题组训练(五题)

  1、I’m talking to you, Jake. Please listen to ___ carefully.

  A. me B.mine C. you D. yours

  2、Tomand I are good friends.___ often help each other.

  A. We B. Us C. Our D. Ours

  3、Mr.Wangis very friendly, and ___like him a lot.

  A. ours B.us C. our D. we

  4、I’m going to the cinema. Would you like to go with___?

  A. me B. I C. my D. mine

  5、Don’t just stand there. Do ___!

  A. anything B. something

  C. everything D. nothing

  拔高题组训练(十题)

  1、Thereare quite a few old books on the shelf, but ___ of them is useful to him.

  A. both B.all C. neither D. none

  2、—I can’t find ___ scarf.

  —There’s one here. It might be ___

  A. my, mine B. mine, my

  C.I, me D. me, I

  3、—Whose shirt is this? Is it Tom’s?

  —No,it isn’t. ___ is red.

  A. Mine B.Hers C. His D. Yours

  4、—Who taught ___ French?

  —Nobody.She learned all by ____.

  A. herself, her B. she, herself

  C. her, herself D. her, she

  5、It’s a bird.___ name is Happy.

  A. It’s B. It C. Its D. His

  6、Withoutthe sun, ____ could grow in the world.

  A. anything B. something C. nothing D. everything

  7、Pleasegive the key to ___.

  A. his B.he C. him D. mine

  8、Thereisn’t ____water in the cup.

  A. some B.little C. any D. no

  9、Ourchildren can look after ___ now.

  A. their B.themselves C. themself D. them

  10、Whateveryou do,___ is difficult if you put your heart into it.

  A. nothing B. anything C. something D. everything

  疑难题组训练(五题)

  1、Ihear someone___ at the door. Please go and see who___ is.

  A. knock, he B. knocking, he

  C. knock, it D. knocking, it

  2、Putit down, Tom . You mustn’t read ___ letter.

  A. else anyone’s B. anyone’s else

  C. anyone else’s D. anyone else

  3、Hisname is Jim but he calls ___ James.

  A. his B.himself C. him D./

  4、—Is ___ here?

  —No, Bob and Jim have askedfor leave.

  A. anybody B. everybody C. somebody D.nobody

  5、There’s ____ to read.

  A. somethinginteresting B. interesting something

  C. somethinginterested D. interested something

  附加答案:

  1—5AADAB;

  1—10 DACCC; DCCBA

  1—5 DCBBA

  ㈢、冠词

  基础题组训练(五题)

  1、Look!There is ___ cat in the tree.

  A. a B. an C. the D. /

  2、Lily,please open ___ door.

  A. a B. an C. / D. the

  3、Mysister can play ___ piano very well.

  A. a B. an C. the D. /

  4、___old man behind Mary is ___university teacher.

  A. An, an B. A, the C. The, a D. The, an

  5、___Brownswere having dinner when the telephone rang.

  A. A B. The C. An D. /

  拔高题组训练(十题)

  1、Whatdo you usually have for ___ dinner, Peter?

  A. a B. anC. / D. the

  2、Peopleoften go skating in___ winter.

  A. a B. an C. the D. /

  3、Iusually go out for ___ walk after ___dinner.

  A. a, / B./, the C. a, a D. the, a

  4、Myfather usually reads morning papers before going to___ work.

  A. the B. a C. an D. /

  5、YesterdayI caught___ bad cold and had to stay in___ bed all day.

  A. a, the B. /, / C. a, / D. /, the

  6、Thereis___ apple tree in my garden.

  A. the B. a C. an D. /

  7、Theeducation of the young is always___ hot and serious topic.

  A. the B. a C. an D. /

  8、That’s ___ very thing I’ve been looking for.

  A. a B. an C. the D. /

  9、Wesaw ___ elephant in the zoo.___ elephant was from India.

  A. a, The B. the, An C. an, The D. the, A

  10、___United Nations was founded in 1945.

  A. The B. A C. An D. /

  疑难题组训练(五题)

  1、—It’s ___ nice day, isn’t it?

  —Yes,what___ fine weather.

  A. a, a B.the, the C. a, / D. the, /

  2、Wecan see ___ sun and ___ moon in ___ picture.

  A. a, the, the B. the, a, the

  C. a, the, a D. the, the, the

  3、Wecan’t see ___ sun at ___ night.

  A. the, the B. the, / C. a, / D. /, /

  4、___old lady with white hair ___ spoke English well at ___ meeting.

  A. An, an, a B. The, / an

  C. The, /, a D. The, /, the

  5、—Mom, I need time to relax. Don’t you knowall work and no play makes Jack ___ dull boy?

  —Yes, I do. But I also knowhard work leads to ___ success.

  A. the, the B. a, the C. an, / D. a, /

  附加答案:

  1—5 ADCCC

  1—10 CDADC; CBCCA

  1—5 CDBDD

  ㈣、数词

  基础题组训练(五题)

  1、Thereare sixty students in our class. And ___ of are boys.

  —Wow!Forty girls in your class.

  A. one fourth B. one third

  C. three quarters D. two thirds

  2、AlthoughI failed four times, my father encouraged me to have a ___ try.

  A. second B. third C. fourth D. fifth

  3、June___is Children’s Day.

  A. the one B. first C. the one’s D. one

  4、Nowlet’s have ___. Don’t give up.

  A. the second try B. a second try

  C. second try D. this second try

  5、Hebecame a super star___.

  A. in his thirty B. in his thirties

  C. at his thirty D. at his thirties

  拔高题组训练(十题)

  1、Anew study proves a___ walk every day is enough to

  keep people awayfrom becoming fat.

  A. 30–minute B. 30 minute

  C. 30 minute’s D. 30–minutes

  2、Wouldyou please pass me ___ book on the right?

  A. the third B. the three C. three D. third

  3、About___ of the students in the school were born in the ___.

  A. two-thirds;1990 B. two-thirds; 1990s

  C. two-third; 1990 D. two-third; 1990s

  4、Weall think that the ___ century will bring us more hopes

  A. twenty-first B. twentieth-first

  C. twenty-one D. twentieth-one

  5、___trees have been planted near here, so the air is very fresh.

  A. Two hundreds B. Hundred of

  C. Hundreds of D. Hundreds

  6、TheOlympic Games are held ___.

  A. every fouryears B. every four year

  C. every fourthyears D. every four-years

  7、About___the fans are waiting here. They want to see the great singer.

  A. two thousand of B. two thousand

  C. thousand of D. two thousands of

  8、Shakespearewas born in___.

  A. 1660s B.1660’s C. the 1660 D. the 1660’s

  9、About___ of the articles on education have been published.

  A. two thirds B. two third

  C. seconds three D. seconds third

  10、___the students play QQ farm games on the Internet.

  A. 70 percents of B. 70 percent

  C. 70 percent of D. 70 percents

  疑难题组训练(五题)

  1、—Excuse me, how many students are there in your art club?

  —Thereare ___

  A. twelve B.the twelve C. twelfth D. the twelfth

  2、___the students usually surf ___ the Internet and get information.

  A. 60 percents of;in B. 60 percent; in

  C. 60 percents of;on D. 60 percents; on

  3、I’m sorry to hear more than ___ people lost their lives in theearthquake in Yushu, Qinghai.

  A. two thousand B. two thousands

  C. two thousandsof D. thousands

  4、—When is Mr. Zhang going to China?

  —On___.

  A. July B. July fifth

  C. the year 2011 D. July, 2011

  5、Thenumber of the students in our school is about nine___. ___ of them are boys.

  A. hundred; Twothirds B. hundred; Two third

  C. hundreds; Twothirds D. hundreds; Two third

  附加答案:

  1—5 BCBBB

  1—10 AABAC AADAC

  1—5 ACABA

  ㈤、介词

  基础题组训练(五题)

  1、It’s nice to have a walk ___ a cool summer evening.

  A. in B. at C. for D. on

  2、Theold woman lives ___ a small village. It is ___ two hills.

  A. in; among B. at; among

  C. at; keep D. in; between

  3、Weare doing better ___ English___ our teacher’s help.

  A. in; at B. at; in C. in; with D. with; with

  4、—When is the party?

  —It’s ___ Saturday.

  A. in B. on C. at D. for

  5、Hemakes a living ___ selling newspaper.

  A. in B.for C. by D. with

  拔高题组训练(十题)

  1、Therewill be many robots___ people’s homes ___ ten years.

  A. in; / B. in; in

  C. at; / D. in; after

  2、Ipaid 25 yuan ___ the beef, and I only got a little.

  A. for B.on C. in D. to

  3、Sinceyou are___ danger, why not ask___ help?

  A. in; for B. in; to

  C. with; for D. with; to

  4、Youcan’t find a way to reach your goals when you areproud___ yourself and stand tall like a sunflower.

  A. on B.from C. of D. by

  5、Welooked at each other___ surprise when we heard a bird singing“Happy birthday to you”.

  A. in B. to C. by D. at

  6、Lilycelebrated her twentieth birthday ___ April 26th,2008.

  A. in B. at C. on D. for

  7、—Dad, look at the building. It is on fire.

  —Call119___ the mobile phone right now.

  A. in B. by C. at D. with

  8、AUFO landed___ the Center Street.

  A. at B. on C. in D. for

  9、Theywill raise money ___ the playground.

  A. on B. for C. in D. at

  10、—When will the party be held?

  —___two weeks’ time

  A. After B.In C. On D. At

  疑难题组训练(五题)

  1、LinJing often practices English___ chatting with her American friends.

  A. in B. by C. for D. with

  2、Theyoung men walked ___ the forest and came to a big river at last.

  A. on B.over C. through D. across

  3、Andymoved ___ Hangzhou ___ September, 2008.

  A. /; in B. to; in

  C. to; on D. In; in

  4、Igo to school___ 8 o’clock in the morning.

  A. at B. in C. on D. for

  5、Shewill leave her homework___ the teacher’s desk afterschool today.

  A. from B.to C. for D. on

  附加答案:

  1—5 DDCBC

  1—10 BAACA CDBBB

  1—5 BCBAD

  ㈥、形容词

  基础题组训练(五题)

  1、Ifind joining the English club___ because it has improved my speaking skillsquickly.

  A. exciting B.boring C. relaxing D. frustrating

  2、Wedidn’t get on well and he often made me ___.

  A. angry B. angrily C. to be angry D. be angry

  3、Learningwill become much___ if you find the proper way.

  A. more easier B. easiest

  C. easy D. easier

  4、Nowthe air in our city is ___ than it used to be something must be done to stopit.

  A. very good B. much better

  C. rather bad D. even worse

  5、Theseats in the middle of the cinema are___ of all.

  A. better B. goodC. the best D. best

  拔高题组训练(十题)

  1、Ifwe continue to be ___ the problem, things are sure to go from bad to worse.

  A. blind to B. interested in

  C. honest about D. satisfied with

  2、Cindylikes telling jokes. She never stops talking. She is ___.

  A. serious B.quiet C. shy D. outgoing

  3、Don’t worry. He is ___ to take good care of little Betty.

  A. carefullyenough B. enough careful

  C. careful enough D. enough carefully

  4、—What do you think of the car?

  —It looks beautiful. I likeit but I can’t afford it. It’s___ than I expected.

  A. cheap B. cheaper

  C. expensive D. more expensive

  5、GuoJingjing said that the coach was ___ her when she joined the Chinese divingteam.

  A. angry at B. strict with

  C. strict about D.afraid of

  6、Johndidn’t know the boy and his mother. But it was ___ ofhim to jump into the river and save the boy.

  A. happy B. braveC. weak D. strong

  7、Thenumber of giant pandas is getting ___, because their living areas are becomingfarmlands.

  A. less and less B. larger and larger

  C. smaller andsmaller D. fewer and fewer

  8、—Which of those radios sounds___?

  —The smallest one.

  A. good B. well C.better D. best

  9、—Would you like to go out for a walk?

  —Good idea, and the TVprograms are too___.

  A. wonderful B.interesting C. exciting D. boring

  10、Theman looked at me with a ___ smile.

  A. friend B.friends C. friendly D. friendlily

  疑难题组训练(五题)

  1、We’d better wait ___ more minutes. I think Jeff will come soon.

  A. a few B. few C. a little D. little

  2、Thesea looks very ___ when the sun is shining on it.

  A. beautiful B. more beautiful

  C. the mostbeautiful D. most beautiful

  3、—Jack, how are you feeling today?

  —Much___. I think I can goto school tomorrow.

  A. better B. worseC. brighter D. weaker

  4、—What do you think of the TV sitcom(情景喜剧)HomeWith Kids?

  A. boring B. funnyC. surprising D. terrible

  5、Thebook is ___ for him to read.

  A. easily enough B. easy enough

  C. enough easy D. enough easily

  附加答案:

  1—5 AADDC

  1—10 ADCDB BCDDC

  1—5 AAABB

  ㈦、副词

  基础题组训练(五题)

  1、Jackis good at drawing. I think no one draws ___.

  A. better B. bestC. worse D. worst

  2、—We are doing a lot to protect our environment, but it is not goodenough.

  —So we should try ___ tolook after it.

  A. hard B. harderC. hardest D. hardly

  3、Whenhe heard a cry for help, he ran out as ___ as he could.

  A. hardly B.quickly C. finally D. slowly

  4、Thebag that my grandpa made for me ___ gets out of style, but it is still the bestthing in my mind.

  A. usually B.normally C. gradually D. unusual

  5、—Did Kate do best in the final exam?

  —No, but of all thestudents she did___.

  A. the mostcareful B. more careful

  C. most carefully D. more carefully

  拔高题组训练(十题)

  1、—Steve is good at writing short stories.

  —So he is. But he writes___ than us. So he can’t get good grades in writing.

  A. most carefully B. more carefully

  C. less carefully D. least carefully

  2、Aliceexplains things very well; what she sayss can be understood very ___.

  A. quietly B.carefully C. slowly D. clearly

  3、Mrs.Smith has a cute baby. It often smiles at people___.

  A. friendly B.lovely C. happily D. lively

  4、Inthe piano contest, my brother didn’t play well and Idid___.

  A. very well B. much better

  C. very good D. even worse

  5、—I think winter is a beautiful season, ___ when it snows.

  —Me, too.

  A. specially B.especially C. probably D. properly

  6、Ifyou don’t work___ enough, I don’t think your dream will come ___.

  A. hardly; trulyB. hardly; true

  C. hard; true D. hard; truly

  7、Hesaid he would come to see us ___ the next afternoon.

  A. sometime B.some time C. sometimes D. some times

  8、InChina it is a custom to give young kids lucky money, ___ during the Spring Festival.

  A. finally B.luckily C. simply D. especially

  9、Pleaseread every sentence___. The more ___ you are, the fewer mistakes you’ll make.

  A. carefully;careful B. careful; careful

  C. careful;carefully D. care; careful

  10、Ofall the teams in NBA, I think the Los Angeles Lakers played ___ this year.

  A. mostsuccessfully B. the more successfully

  C. verysuccessfully D. much more successfully

  疑难题组训练(五题)

  1、Aswe all know, smoking is bad for us,___for children.

  A. especially B.recently C. probably D. nearly

  2、GuoYue did quite ___ at the World Table Tennis Championship, but Zhang Yining dideven ___.

  A. better; well B. well; well

  C. well; better D. better; better

  3、Don’t worry, sir. I’m sure I can run ___ tocatch up with them.

  A. fast enough B. enough fast

  C. slowly enoughD. enough slowly

  4、Susanenjoys walking at times, but ___ she rides back home.

  A. mostly B.almost C. nearly D. most

  5、It’s almost impossible for ___ few people to do ___ much work in ___ ashort time.

  A. so; so; so B. so; so; such

  C. such; such;such D. such; such; so

  附加答案:

  1—5 ABBCC

  1—10 CDCDB CADAA

  1—5 ACAAB

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