Question

【题目】______ is known to us all is that the old scientist, for ________ life was hard in the past, still works very hard in his eighties.

A. As; whom B. What; whom C. It; whose D. As; whose

Answer 1

【答案】B

【解析】

试题分析：考查连接代词。句意：我们都知道那个老科学家过去的生活很艰难，但他在八十几岁时仍然努力工作。_____is known to us all 是主语从句，第一个空上的词要做主语，排除AD。 第二个空上的词做for的宾语，代替the old scientist。故选B项。