You ______ swim in a swimming suit.横线上填must还是mustn't

You ______ swim in a swimming suit.横线上填must还是mustn't Can you _____ in summer?横线上填swimming还是swim? swimming suit must be one of the ______(swim) you mustn't swim in this river. you can_____now 填swim还是swimming the river is dangerous.you ___ swim in it .A.can't B.mustn't you mustn't swim in deeper water如何回答? You mustn't swim in the sea改为祈使句 You mustn't swim in the sea.（改为祈使句） We ______ talk loudly in the library.A.must B.mustn't C.can 27. Must I save water? I’m afraid you ______. A. mustn’t B. We are enjoying_____ in the pool 填swim还是swimming