A: I haven't sat down all day.B: You _____be very tired.A. couldB. have toC. must

相关问题 1：

－－Must we finish our homework now? －－No, you ______. You _______ finish it after school.A.needn't , mayB.mustn't , mayC.can't , canD.needn't , must

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相关问题 2：

“Must I finish my homework now?” “No, you() . But you() finish it this evening. ”A. mustn’ t…mustB. needn’ t…mustC. can’ t…canD. can’ t…must

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相关问题 3：

Where ________ you ________?A.are/beB.have/beC.is/beD.have/been

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相关问题 4：

9． _______you _______ stay at home today?A． Do ; have toB． Must; have toC． Have; toD． Do ; must

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相关问题 5：

—You've been busy, haven't you? —_______A.I was busy last week.B.Yes, I've been working hard on my paper.C.I will get busy with my English studies.D.I'd like to get busy like our teachers.

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相关问题 6：

—_______ I return the book to the library this week?— No, you _______.You can keep it until the end of this month.A.Must; needn’tB.Can; can’tC.May; mustn’tD.Can; mustn’t

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相关问题 7：

________ can be done ________ been done.A.All that...hasB.All that...haveC.All...hasD.All...have

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