base on用法
问题描述：
base on用法
The professor could hardly find sufficient grounds___ 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,为什么,
答
这个教授找不到足够证据来证明他偏向这个新的理论的逻辑.
His arguments are based on grounds.
"on which to base" 表示后者,"arguments",是建立在前者上的,"sufficient grounds".
Hope this helps.