— Do you know the man came here yesterday? — Yes he brought me the most interesting book

问题补充：

— Do you know the man came here yesterday?

— Yes, he brought me the most interesting book I had wanted to buy.

A. who; what

B. whom; which

C. who; that

D. whom; that

答案：

A. who; what

B. whom; which

(答案→)C. who; that

D. whom; that

解析：句意：你认识昨天来这里的男人吗？认识，他带来了我想买的最有趣的一本书。这两句都缺定语从句的关系词；第一句中先行词是人，而且关系词在从句中作主语，故用who；第二句中先行词是book，指物，而且前面有最高级修饰，所以关系词用that，故选C。