If you have any question you can ask your teacher help.A. to B. for C. with

问题补充：

If you have any question, you can ask your teacher help.

A. to B. for C. with

答案：

解析：根据语境可知此句的含义是如果你有疑问可以向老师寻求帮助。其中涉及到固定句型结构ask sb for sth表示向某人寻求帮助。故选B。