本体选择什么（）1. It ______ 3 years since he left us.（）1. It ______ 3 _英语解答

本体选择什么（）1. It ______ 3 years since he left us.
（）1. It ______ 3 years since he left us.
A. isB. has been C. wasD. were

人气：497 ℃　时间：2019-12-07 02:29:30

解答

选B,因为本句中有since一词,是现在完成时的标志词.