The professor could hardly find sufficient grounds______his arguments in favor of the new theory.

admin2017-05-31  38

问题 The professor could hardly find sufficient grounds______his arguments in favor of the new theory.

选项 A、to be based on
B、to base on
C、which to base on
D、on which to base

答案D

解析
转载请注明原文地址:https://jikaoti.com/ti/z3KGFFFM
本试题收录于: 英语题库普高专升本分类
0

最新回复(0)