Someone is knocking at the door. It ____ my mother. It"s time for her to be back

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Someone is knocking at the door. It ____ my mother. It"s time for her to be back.

[ ]

A. can be
B. may not be
C. must be
D. mustn"t be

答案

举一反三

Be careful with knives, or you _____ cut your fingers.[ ]
A. can
B. have to
C. must
D. may

题型：同步题难度：| 查看答案

Mr. Green ______ speak a little Chinese, but he can"t speak any Japanese.
A. can
B. may
C. must
D. need

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We ______ frighten the animals in the park.
A. ought to
B. ought not to
C. will
D. should

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句型转换。1. I don"t think he can swim across the Changjiang River. (改为同义句)
    I don"t think he is _____ _____ swim across the Changjiang River.
2. You should walk your dog once a week. (对划线部分提问)
    _____ _____ should you walk your dog?
3. We must clean our classroom every day? (对划线部分提问)
   _____ must we _____ every day?
4. Walk the dog at 7 a.m.. (改为否定句)
    _____ _____the dog at 7 a.m..
5. His dog is the cleverest of all. I don"t think so. (合并为一句)
I _____ think his dog _____ the cleverest of all.

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I ____ look after my mother at home because she is ill.
A. have to
B. must
C. mustn"t
D. don"t have to

题型：0110 月考题难度：| 查看答案