-Will you be able to finish your report today?-( ).
A.mustn't he
B.needn't he
C.isn't he
D.shouldn't he
求原因.
应该是John must be in the chemistry lab,(
人气：431 ℃ 时间：2020-05-13 03:33:55
解答
must在这里做情态动词,表推测,后面反义疑问句只跟推测的内容有关
如果推测的内容是肯定的,就用否定；反之,用肯定
如果LZ还有疑问的话,就尽管密我吧.
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