Question

________ is known to us all is that the old worker, for _______ life was hard in the past, still works hard in his seventies.

A．As; whom

B．What; whose

C．It; whose

D．What; whom

Answer 1

D

解析试题分析：句意：我们都知道的是对他来说过去的生活很难的那个老工人70几岁了还在辛苦的工作。What引导一个主语从句，并作从句的主语。第二个空代替先行词the old worker，并作介词for的宾语，用whom。如果填whose，定语从句就没有主语了。选D。
考点：考查名词性从句和定语从句的引导词