We all know that Chinese students study very hard for long ___.A.days B.time C.hours D.weeks

分类: 作业答案 • 2021-12-02 10:30:02

问题描述：

We all know that Chinese students study very hard for long ___.A.days B.time C.hours D.weeks
选B还是C?

答

C for hours 是形容前面的动词持续的时间,表示长达几个小时
选B的话应该用for all time