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Must we hand in our homework now?No,you needn't.解释一下为什么要用needn't.
人气:394 ℃ 时间:2020-04-05 06:07:57
解答
Must 否定回答用 needn't ( 没有必要)
而:mustn't 表示禁止“一定不要”,如:You must play football in the street.
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