Professor Liu ______ for 20 years by the end of next summer.A、has taughtB、will

游客2023-09-22 74

问题 Professor Liu ______ for 20 years by the end of next summer.

选项 A、has taught
B、will be teaching
C、has been teaching
D、will have taught

答案 D

解析本题考查将来完成时的用法。本句有两个时间状语。其中一个是表示将来的by the end of nextsummer，因此需要使用将来时；另一个是表示从过去开始到将来时间段的for 20 years，需要与延续性动词的完成时态连用。综合上述分析可知，本句的谓语动词需要使用将来完成时，故D项为正确答案。

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Professor Liu ______ for 20 years by the end of next summer.A、has taughtB、will

Whentheprofessorcameintotheroom,hefoundhimself(surround)______bymany

[originaltext]M:DoyouknowProfessorSam’sbrother?W:I’venevermethim.bu

ProfessorLiu______for20yearsbytheendofnextsummer.A、hastaughtB、will

Beforehisdeathlastyear,ProfessorJohnsondecidedthathe______leave$2,000

HegotamessagefromMissZhang______ProfessorWangcouldn’tseehimthefoll

It’sapitythatProfessorSmithhasfailedtomakehisidea______intheclass

Neitherthestudentsnortheprofessorhimself______thewayout.A、hasfoundB、h

The(profess)______worksveryhardinhislab.professor本题测试的是词性转换。全句的意思是：“这个教授

ProfessorZhoutoldusthatbytheendofthisyear,he______herefortwoyear

OnJuly12,1993,ayoungprofessorofAmericanhistorynamedFrederickJackson

Tofightagainstcomputercrimes,acomputersystemneedsasurewayofiden

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WriterJohnWorthensuggestedthat,insomecases,biographersshouldbe(i)____

Adegreefromacollegeoruniversityisoftenakeythatopensdoorsof【B1】

IhaveneverbeentoNewYork,butit’stheplace______.A、whereI’dliketovis

单独测定石灰中的有效氧化钙含量和氧化镁含量时，进行滴定所采用的溶液是（）。A.

社会认识是指个体在与他人的交往过程中，观察、了解他人并形成判断的一种心理活动。根

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