问题补充:
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
答案:
A. As;whom
B. What;whose
C. It;whose
D. What;whom
解析:D
解析考查名词性从句和定语从句的引导词。第一个空中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。