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标题: 一般现在时代替完成时 [打印本页]

作者: x-ace    时间: 2009-12-25 13:06     标题: 一般现在时代替完成时

1) 有些动词用一般现在时代替完成时:
hear, tell, learn, write , understand, forget, know, find , say, remember.
 I hear (= have heard) he will go to London.
 I forget (=have forgotten) how old he is.
2) 句型 " It is … since…"代替"It has been … since …"
3) It is (= has been) five years since we last met.

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