The professor could hardly find sufficient grounds _____his arguments in favor of the new theory.A.t

题目简介

The professor could hardly find sufficient grounds _____his arguments in favor of the new theory.A.t

题目详情

The professor could hardly find sufficient grounds _____his arguments in favor of the new theory.
A.to be based onB.to base on
C.which to base onD.on which to base
题型:单选题难度:中档来源:不详

答案

D
on which to base his arguments in favor of the new theory =" The" professor will base his arguments in favor of the new theory on sufficient grounds.

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