问题
选择题
We were deeply impressed by the schools and teachers________ we had visited there.
A．where
B．which
C．that
D．who
答案
答案：C
这题考查定语从句的用法：先行词是：the schools and teachers，当先行词有人有物时，应该用that引导定语从句。句意是：我们对在那里见到的学校和老师印象深刻。选C。