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科目： 來源：不詳 題型：單選題

It ________be the vocabulary that caused you the problem in the exercise because you know a lot of words.                                                  (2013·安徽，34)
A．may B．couldn’t
C．shouldD．needn’t

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科目： 來源：不詳 題型：單選題

—Why are your eyes so red？You________have slept well last night.
—Yeah，I stayed up late writing a report.                          (2013·四川，5)
A．can’tB．mustn’t
C．needn’t D．won’t

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科目： 來源：不詳 題型：單選題

Since nobody gave him any help，he ________ have done the research on his own.
(2013·大綱全國，26)
A．canB．must
C．wouldD．need

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科目： 來源：不詳 題型：單選題

—You needn’t take an umbrella.It isn’t going to rain.
—Well，I don’t know.It________do.                             (2013·北京，35)
A．mightB．need
C．would D．should

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科目： 來源：不詳 題型：單選題

Harry is feeling uncomfortable.He________too much at the party last night.(2013·遼寧，31)
A．could drinkB．should drink
C．would have drunkD．must have drunk

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科目： 來源：不詳 題型：單選題

No one________ be more generous；he has a heart of gold.         (2013·天津，9)
A．couldB．must
C．dareD．need

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科目： 來源：不詳 題型：單選題

He________sleep，although he tried to，when he got on such a hunt for an idea until he had caught it.                                                     (2013·湖南，32)
A．wouldn’t B．shouldn’t
C．couldn’tD．mustn’t

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科目： 來源：不詳 題型：單選題

When I was a child，I ________ watch TV whenever I wanted to.        (2013·江西，29)
A．shouldB．could
C．mustD．need

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科目： 來源：不詳 題型：單選題

I ________ use a clock to wake me up because at six o’clock each morning the train comes by my house.                                                    (2012·新課標(biāo)全國，30)
A．couldn’tB．mustn’t
C．shouldn’tD．needn’t

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科目： 來源：不詳 題型：單選題

—God！My cell phone is missing.
—You ________ have left it at home.I heard you telephone our daughter in the bathroom.
A．shall B．must
C．wouldD．could

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