Must I wash dishes after supper?No,______ .A.mustn't B.don't have to C.don't D.must
问题描述:
Must I wash dishes after supper?No,______ .A.mustn't B.don't have to C.don't D.must
答
must有两个否定形式:1.mustn't,表示“不许”,“禁止”
2.needn't =don't need to/don't have to/ haven't got to,表示“不必”
所以B