【手机用户】→点击进入免费试听>>【CET4】 * 【CET6】 【电脑用户】→点击进入免费试听>>四六级考试课程! 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.
2017年6月英语六级语法动词时态之一般现在时代替完成时.doc