问题
选择题
It was ten years _______ he returned to his hometown and set out to revenge his dead father.
A．since
B．that
C． before
D． when
答案
答案：C
考查连词。since 自从……以来； that因为，以至于；before在……之前；when当……时。句意：在他返回家乡为他的父亲报仇之前以后十年的时间了。故选C。
