I’m looking at the photographyou sent me with your letter.A. whoB. whomC. whichD. it

问题补充：

I’m looking at the photographyou sent me with your letter.

A. who

B. whom

C. which

D. it

答案：

A. who

B. whom

(答案→)C. which

D. it

解析：先行词photograph指物，因A、B两个选项都是指人，所以排除；关系代词在句中作宾语，答案选C。