题目内容
to take my English textbook, I had to borrow one from a schoolmate.
| A.Forget | B.To have forgotten |
| C.Forgotten | D.Having forgotten |
D
考察分词用法。I与forget构成主动关系,且忘记带英语书是在谓语动词借书之前,所以使用完成式,故D正确。
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