The scientist could hardly find sufficient grounds _____ his arguments in favor of the new theory?

题目

The scientist could hardly find sufficient grounds _____ his arguments in favor of the new theory?
A to base on.B to be based on.请问该选什么?

答案

亲,这里应该选：B to be based on
分析：
短线后面实际上是一个定语从句,省略了部分内容,
如果不全的话,应该是这样：
The scientist could hardly find sufficient grounds （which is to be based on）his arguments in favor of the new theory.
翻译：科学家们几乎很难找到充分的理由,这些理由被建立在支持这个新理论的论据之上.
这里还有几个关键的翻译短语：
sufficient grounds：充分的理由；
base on：以.为根据；建立在.基础之上；基于；
argument：争论,争吵；论据；
in favor of：in favor of 支持,赞同,有利于.