您的位置: 首页  >  作业答案  >  英语  >  关于base on的用法The Professor could hardly find sufficient grounds__his arguments in favor of the new theory.A. to be based onB. which to base onC.to base onD on which to base选哪个,请一定要说明为什么啊!~

关于base on的用法The Professor could hardly find sufficient grounds__his arguments in favor of the new theory.A. to be based onB. which to base onC.to base onD on which to base选哪个,请一定要说明为什么啊!~

分类: 作业答案 • 2021-12-20 01:05:57
问题描述：

关于base on的用法
The Professor could hardly find sufficient grounds__his arguments in favor of the new theory.
A. to be based on
B. which to base on
C.to base on
D on which to base
选哪个,请一定要说明为什么啊!~

答

选D...which指代ground...
前面的介词on必须有,因为这里相当于用了base on the ground这个短语..在定语从句中当用which指代了ground, ground前面的on还是应该存在.但这时候自然要加在 which前面,所以变成了on which to base

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