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1 . Look at the school rules. It says we___________ be late for school.
A.can | B.must | C.needn’t | D.mustn’t |
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2 . 通过实时检测,研究人员能够跟进海洋的快速变化。(keep pace with) (汉译英)
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3 . —Must I finish the paper today?
—No, you _________. You can hand it in next week.
—No, you _________. You can hand it in next week.
A.needn’t | B.can | C.have to | D.mustn’t |
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