the river is dangerous.you ___ swim in it .A.can't B.mustn't C.couldn't D.needn't
问题描述:
the river is dangerous.you ___ swim in it .A.can't B.mustn't C.couldn't D.needn't
答
B.mustn't
从上文the river is dangerous看, 下文应该是”禁止”“ 不许”
如不明白请追问,如果满意请采纳
手机提问者如果满意,请在客户端右上角评价点“满意”即可, 谢谢!
祝学习进步
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