It is the teacher taught me when I was a child I am going to visit.A. that; whichB. who

问题补充：

It is the teacher taught me when I was a child I am going to visit.

A. that; which

B. who; which

C. who; that

D. whom; that

答案：

A. that; which

B. who; which

C. who; that

D. whom; that

解析：who引导定语从句,when引导时间状语从句, that为强调句型的引导词。