D can’t help but do-相當于 have to do-.. 【查看更多】

 

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—I didn’t see her yesterday,I looked for her everywhere,but couldn’t find her.

—Oh,but you　　 .She was working in the office.

A.must have　　　B.ought to　　　　C.ought to have　　　D.can’t have

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We believe she can win the game, ______?

　 A. don’t we 　 B. do we  C. can we 　 D. can’t we

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― Why does Sara know so much about Angkor Wat?

― She ________have been there, or...

A. must　        B. oughtn't to       C. may　           D. Can't

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We believe she can win the game, ______?

　 A. don’t we 　 B. do we  C. can we 　 D. can’t she

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—What do you think we can do for our aged parents?

—You __ ___ do anything except to be with them and be yourself.

A. don’t have to　　　 　 B. oughtn’t to　 C. mustn’t　　　　 D. can’t

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