Question

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

Answer 1

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。