问题补充:
A:Do you know for advice when we have problems.
B:You can talk to your parents or teachers.
A. who to talk
B. when to talk to
C. who to talk to
D. who can we talk to
答案:
A. who to talk
B. when to talk to
C. who to talk to
D. who can we talk to
解析:考查特殊句式。句意:你知道当我们有困难跟谁寻求帮助吗?你可以跟父母或者老师。考查特殊疑问词+不定式做know的宾语,talk to sb 与某人交谈,所以选C项。