He must have been late for the conference yesterday, ______?

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问题 He must have been late for the conference yesterday, ______?

选项 A、didn’t he
B、haven’t he
C、mustn’t he
D、wasn’t he

答案D

解析本题考查反意疑问句。情态动词表推测-后面的反意疑问句应该与实际时态一致。用must have done表示“对过去加以推测”时，其附加疑问部分要根据must后的动词形式和有无时间状语来确定时态。此句中动词是be，时间是yesterday，所以用wasn’t he。如果去掉yesterday，就应选B项。

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成人本科学位英语

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He must have been late for the conference yesterday, ______?

成人本科学位英语

Valencia(巴伦西亚)isintheeastpartofSpain.Ithasaportonthesea,twomilesawayfromthecoast.Itisthecapitalofaprov

Unlikethesummerhighincrimesofbodilyharm,burglaryhasadifferentcycle.

"Equalpayforequalwork"isaphraseusedbytheAmericanwomenwhofeelthattheyareunfairlytreatedbysociety.Theysayi

Todayanyonewillacceptmoneyinexchangeforgoodsandservices.Peopleusemoneytobuyfood,furniture,books,bicyclesand

Weighingsevenhundredpounds,______.

Itisnecessarytoputbottlesofpillsoutof______.

Itisnoeasyjobtobeateacher.Onehastobeextremelypatient______thestudents.

—IsawSaminthelibraryyesterdaymorning.—You______him,heisstillabroad.

Inthispart,youaretoxvriteacompositionofnolessthan150wordsaboutCollegeGraduatesWorkasVillageOfficials.Yoush

Whenweplaytenniswehaveto______.By"character-training",theauthormeansthatsportsandgamescanhelpchildren______

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Youreallyhavetogetveryoldbeforeyourealizeyou’reold.I’minmymiddlefiftiesandIdon’tfeel【C1】______yet.However,

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