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。 |
| 摘录时间:2007-9-12 9:06:00
本信息来源于:四六级考试网 |
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