It ________ be the postman at the door. It"s only six o"clock. [ ]A. mustn"t

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It ________ be the postman at the door. It"s only six o"clock. [     ]
A. mustn"t
B. can"t
C. won"t
D. needn"t

答案

举一反三

I ________ through that bitter period without your generous help. [    ]
A. couldn"t have gone
B. didn"t go
C. wouldn"t go
D. hadn"t gone

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— Will you read me a story, Mummy?
— OK. You ________ have one if you go to bed as soon as possible. [     ]
A. might
B. must
C. could
D. shall

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— I don"t really like James. Why did you invite him?
— Don"t worry. He ________ come. He said he wasn"t certain what his plans were. [    ]
A. must not
B. need not
C. would not
D. might not

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— Shall I inform him of the change of the schedule right now?
— I am afraid you ________, in case he comes late for the meeting. [    ]
A. will
B. must
C. may
D. can

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— How"s your new babysitter?
— We ________ ask for a better one. All our kids love her so much.[    ]
A. should
B. might
C. mustn"t
D. couldn"t

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