题目内容
20.She has already made a telephone call to her parents.(改为一般疑问句)Has she made a telephone call to her parentsyet?
分析 她已经打电话给她的父母了.
她已经打电话给她的父母了吗?
解答 答案:Has,yet.原句是现在完成时的肯定句,将has提到句首引起一般疑问句,already改为yet,故答案是Has,yet.
点评 一、含有be动词(am/is/are/was/were)动词的一般疑问句,通常把be动词调到句首.
二、含有情态动词(can/may/must/could)的一般疑问句,把情态动词调到句首.
三、句子里没有be动词、助动词、情态动词等,就需要加助动词do,does,、did(过去式)来构成疑问句,加上这些助动词后,句子中谓语动词必须用原形.
其句型为:Do/Does/did+主语+动词原形+其它?
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