It____be the postman at the door. It"s only six o"clock. [ ]A. mustn"t B
题型:同步题难度:来源:
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
B |
举一反三
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[ ] |
A. can B. may C. must D. should |
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[ ] |
A. can B. must C. need D. might |
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[ ] |
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[ ] |
A. must not B. need not C. would not D. might not |
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[ ] |
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