Question

I have kept up a friendship with a girl whom I was at school（ ）twenty years ago.

A.about
B.since
C.till
D.with

Answer 1

【答案】：D
该题考查定语从句。该句中whom I was...ago是定语从句修饰a girl，而在定语从句中谓语动词的宾语不能直接是a girl，即要接一个介词with，其他选项不符合题意，故答案为D。