The professor could hardly find sufficient grounds______ his arguments in favor

游客2024-10-26  15

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://tihaiku.com/zcyy/3818035.html
最新回复(0)