The researcher could hardly find enugh evidence____his arguments in favour of the new theory

问题描述:

The researcher could hardly find enugh evidence____his arguments in favour of the new theory
A to be based on B to base on C which to base on D on which to base

选D,介词+which+to do 作定语,相当一定语从句,介词+which作不定式的时间,方式等状语he had no money with which to buy some gifts for his girlfriendspring is the best season in which to go spring outing.A to...