Sometimes I feel stressed but I don’t know for help.A. who to talkB. who should I talk t

问题补充：

Sometimes I feel stressed, but I don’t know for help.

A. who to talk

B. who should I talk to

C. who to talk to

D. which one to talk

答案：

A. who to talk

B. who should I talk to

(答案→)C. who to talk to

D. which one to talk

解析：根据语境可知此题考查的是疑问词+动词不定式的基本用法。此句的含义是有时我感到非常的紧张，但是我不知道应该向谁说寻求帮助，因说的对象是人，故用疑问代词who，talk是不及物动词其后跟宾语时要用介词to或with根据选择项的提示可知选择C。