in the last century 是大段的时间概念,要用现在完成时-这个确定吗? 看了以前关于这道题的帖子 说是因为前面the recent election 导致过去延伸到现在而选择完成时的 不过 141 In the last ten years, the dropout rate among Black high school students fell substantially over the past decade, while the number of Blacks who attend college is more than twice what it was. (A) fell substantially over the past decade, while the number of Blacks who attend college is more than twice what it was (B) fell substantially, while the number of Blacks attending college is more than double what it was at that time (C) has fallen substantially, while the number of Blacks attending college has more than doubled (C) (D) has fallen substantially over the past decade, while the number of Blacks attending college is more than twice what it was at that time (E) has fallen substantially over the past decade, while the number of Blacks who are attending college are more than double what they were 也因为有个In the last ten years而选择了完成时 所以不解。。。 |