Do you know the boy father died in the fire?A. whoB. whichC. whoseD. whom

问题补充：

Do you know the boy father died in the fire?

A. who

B. which

C. whose

D. whom

答案：

A. who

B. which

(答案→)C. whose

D. whom

解析：句意：你认识这个他的父亲在大火中丧生的男孩吗？通过分析句子结构，可知这个句子中包含一个定语从句，且关系词在从句中作定语，故用关系代词whose，选C。