一般现在时代替完成时
发布时间：2015-01-20 编辑：查字典英语网小编
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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