UC知道He must leave tomorrow
来源：百度知道 编辑：UC知道 时间：2024/05/10 07:00:51
变成疑问句要加助动词DO吗？为什么？
这句话变成疑问句不用加助动词do。
因为这是一句含有情态动词（must）的判断句。
根据含有情态动词的肯定句变疑问句的规则。
只需将情态动词放置句子的开头。
所以此句的疑问形式就是：Must he leave tomorrow?
Must he leave tomorrow?
must是情态动词，不加助动词了
He must leave tomorrow
HE MUST HAVE BEEN THERE BEFORE ,HAVEN'T HE?
He didn't want to leave this house
Edison must have been very clever, wasn’t he?
He must be playing computer games at home,isn't he,为何用isn't he?
He must study hard,___ ___? (must 在这里是必须的意思) A.mustn't he B.needn't he
he didn't want to leave this house这里为什么用DID
what must he do?
You must know that he is bad ( ) you though you haven't ( ).
Although he has lived with US for years，he——US much impression C．doesn’t leave D．hasn’t lef