It is said that she___in a computer company since graduation. A.has employed B.has been employed C.had employed D.is employed 这句话意思是她从毕业后就一直被一家电脑公司雇佣?为什么选B?A错哪里?A和B的区别给我讲一下
Doctors suggested that textbooks and notebooks___on yellow paper,which would be better for eyes. A.to print B.be printed C.must be printed D.ought to print. 怎么感觉B选项读起来好怪异 C为什么不对?
还有一个改错题:Nancy (said A)that she (went B) to the supermarket (before C) (coming D) home. 我知道是B错了 我想问一下这个coming在句里做什么成分 为什么要是ing形式?come不行吗?
第一个可以再详细说下不?
追答可以。是说她被电脑公司雇,而不是她雇电脑公司。所以用B。又由于她一直在那儿,没有改变,用了现在完成时态。单三就不用说了吧。