—Is Jack on duty today? —It________ be him. It's his turn tomorrow.

试卷相关题目

• 1 Why _____ the car break down just when I was about to start?

  A.must

  B.can

  C.may

  D.need

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• 2I didn't hear the phone last night. I _____asleep.

  A.must be

  B.must have been

  C.should be

  D.should have been

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• 3 --- I didn't know you were good friends. --- You ______. I have known her since she moved here. You were studying aboard then.

  A.may have

  B.needn't have

  C.wouldn't have

  D.must have

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• 4 Peter________come with us tonight, but he isn't very sure yet.

  A.must

  B.may

  C.can

  D.Will

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• 5If it were not for the fact that you _____ ill, I would ask you to do this right now.

  A.were

  B.had been

  C.are

  D.should be

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• 6“ Isn't that Tom playing basketball?” “ It ______ be; he fell off the ladder yesterday and got badly hurt.”

  A.mustn't

  B.would rather not

  C.couldn't

  D.wouldn't

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• 7I'm glad I went over all my notes; otherwise _____ .

  A.I may have failed

  B.I'd fail

  C.I'd have failed

  D.I'll have failed

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