Question

It ______ six years since they last saw each other.

A．was

B．had been

C．is

D．would have been

Answer 1

C

考查时态。句意：自从他们上次见到彼此有六年的时间了。结合语境可知主句表示的是客观存在的一个事实，故用一般现在时态，选C。