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What you saw can' t have been an aeroplane. I' m convincedit____ a large bird.

题目
What you saw can' t have been an aeroplane. I' m convincedit____ a large bird.

A.must be

B.has been built

C.must have been

D.could have been

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相似问题和答案

第1题：

How long() you() a member of the club?

A.have,,joined

B.have,,been

C.has,,joined

D.has,,been


参考答案：B

第2题：

Where ________ you ________?

A.are/be

B.have/be

C.is/be

D.have/been


正确答案：D

第3题：

You look(). What () you () ?

A、tire, did…do

B、tiring, have…done

C、tired, do…do

D、tired, have…been doing


参考答案：D

第4题：

—_______ I return the book to the library this week?— No, you _______.You can keep it until the end of this month.

A.Must; needn’t

B.Can; can’t

C.May; mustn’t

D.Can; mustn’t


答案：A

第5题：

()you()Jane last month? B: No, I().

A、*/saw/didn’t

B、Did/see/didn’t

C、Did/saw/didn’t

D、id/see/did


答案：C

第6题：

“Must I finish my homework now?” “No, you() . But you() finish it this evening. ”

A. mustn’ t…must

B. needn’ t…must

C. can’ t…can

D. can’ t…must


参考答案：B

第7题：

-Mayweleavetheclassroomnow?

-No,you______.You______toleaveuntilthebellrings.

A.mustn’t,areallowed

B.don’thaveto,aresupposed

C.needn’t,aren’tallowed

D.can’t,aren’tsupposed


正确答案：D

第8题：

－－Must we finish our homework now? －－No, you ______. You _______ finish it after school.

A.needn't , may

B.mustn't , may

C.can't , can

D.needn't , must


正确答案:A

第9题：

Why()the old block of flats()demolished next month?

A、are…being

B、is…being

C、has…been

D、have…been


参考答案：B

第10题：

You look（） What（）you（）?

Atire；did；do

Btiring；have；done

Ctired；do；do

Dtired；have；been doing


D
略

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