I still remember the college and the teachers I visited in London years ago.A. whatB. who

问题补充：

I still remember the college and the teachers I visited in London years ago.

A. what

B. who

C. that

D. which

答案：

A. what

B. who

(答案→)C. that

D. which

解析：what一般不用于定语从句；who在定语从句中指人； that既可指人，也可指物；which指物。句意：我仍旧记得几年前去伦敦访问的大学和老师们。结合语境可知本句中先行词the college and the teachers中既有人，又有物，故引导词只能用that，选C。