Question

here yesterday, he could have seen Jackie Chen.

A．If Bob has come B．If Bob came

C．Had Bob come D．If Bob should come

 

Answer 1

C

【解析】考查虚拟语气。句意：要是鲍勃昨天在这儿，他可能会看到成龙。根据时间状语yesterday可知是对过去事实的假设，故用过去完成式，即If Bob had come…，省略为Had Bob come。故选C项。