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科目: 来源:不详 题型:单选题

—Must we clean the classroom at once?
—No, you         . You can clean it after school.
A. needn’t                 B. mustn’t         C. must

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科目: 来源:不详 题型:单选题

-----Look !Sue is over there.
----That _________be her .She is in Canada now.
A .mustn’t        B. can’t           C. needn’t

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科目: 来源:不详 题型:单选题

—What will the weather be like tomorrow?
—It _______ be rainy, cloudy or sunny. Who knows?
A.mustB.might
C.shallD.should

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科目: 来源:不详 题型:单选题

"Whose T-shirt is this?"  "It_____ be John's. It's much too small for him.”
A.  might          B.  can't      C. needn't

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科目: 来源:不详 题型:单选题

    --- Whose backpack is this?
--- It        be Mary’s. She is looking for hers.
A.canB.must
C.mayD.can’t

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科目: 来源:不详 题型:单选题

— ____ you sing the English song?
— Yes, I can.
A.CanB.MayC.MustD.Need

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科目: 来源:不详 题型:单选题

Mike, please be quiet, or the other students          hear me clearly.
A.mustn’tB.shouldn’t
C.needn’tD.can’t

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科目: 来源:不详 题型:单选题

-May we leave the classroom now?
-No, you _______. You _______ to leave until the bell rings.
A.can't; are allowedB.mustn't; aren't allowed
C.needn't; are allowedD.needn't; aren't allowed

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科目: 来源:不详 题型:单选题

— Who’s that boy reading in the garden? Is it David?
— It ____________ be David. I saw him in the classroom just now.
A.mustB.can’t
C.mayD.shouldn’t

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科目: 来源:不详 题型:单选题

  ______ I have a quick word with you? Something important has happened.
A.MustB.CouldC.WouldD.Should

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