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> He must be helping the old man to water the flowers,______ ?A.is heB.isn’t heC.must heD.mustn’t he-高
He must be helping the old man to water the flowers,______ ?A.is heB.isn’t heC.must heD.mustn’t he-高
题目简介
He must be helping the old man to water the flowers,______ ?A.is heB.isn’t heC.must heD.mustn’t he-高
题目详情
He must be helping the old man to water the flowers,______ ?
A.is he
B.isn’t he
C.must he
D.mustn’t he
题型:单选题
难度:中档
来源:不详
答案
B
考查反意疑问句。陈述句中的谓语中虽有情态动词must,但此处must表示对正在进行的动作进行推测,将其不看作情态动词。而must后有助动词be,故反意疑问句根据助动词be来构成,选B。
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题目简介
He must be helping the old man to water the flowers,______ ?A.is heB.isn’t heC.must heD.mustn’t he-高
题目详情
答案