-Listen! Is that Kate playing the piano in the room?-No. It _____ be Kate. She

题型：同步题难度：来源：

-Listen! Is that Kate playing the piano in the room?
-No. It _____ be Kate. She has gone to London.[ ]
A. may not
B. needn"t
C. mustn"t
D. can"t

答案

举一反三

-Must we clean the classroom now?
-No, you _____.[ ]
A. must
B. needn"t
C. aren"t
D. must not

题型：同步题难度：| 查看答案

It"s raining hard outside, so they      stay in the classroom.[     ]
A. must
B. can
C. have to
D. might

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We will start at 8 : 00. Everyone      be late.   [     ]
A. doesn"t
B. can"t
C. needn"t
D. mustn"t

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I am very tired today. I _____ go to bed early.[ ]
A. should
B. shouldn"t
C. can
D. can"t

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The task is so hard that he_______ finish it on time.[ ]
A.shouldn"t
B.needn"t
C.can"t
D.mustn"t

题型：月考题难度：| 查看答案