题目内容

按要求改写句子

It is impossible that a child can lift such a heavy box. (改为同义句)

It is impossible _______ a child ________ ________ such a heavy box.

答案:for;to;lift
解析:

it作形式主语,不定式作真实主语,构成It beadj.for sbto do sth.句式,意为“某人做某事……”。如:It is hard for him to do it. (他做此事很难。)


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