the river is dangerous.you ___ swim in it .A.can't B.mustn't C.couldn't D.needn't

the river is dangerous.you ___ swim in it .A.can't B.mustn't C.couldn't D.needn't
英语人气:932 ℃时间:2019-12-07 07:15:32
优质解答
选择B,因为mustn't表示的是禁止,河是危险的,所以是禁止,表示命令
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