题目内容
18.他已经浏览了图书馆里所有的书.He haslookedthroughall the books in the library.
分析 looked through.
解答 答案:looked through.结合句意表示浏览用look through发生在过去对现在造成一定的影响,结合has故用现在完成时have/has+过去分词,故答案是looked through.
点评 现在完成时有两种用法1.过去发生的某一动作对现在造成的影响或结果或到现在为止已经发生或完成的动作.2.表示过去发生的、持续到现在的动作或状态.
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