问题
选择题
If my lawyer ______ here last Friday, he _____ me from telling the truth.
A．had been; would have prevented
B．had been; would prevent
C．were; would prevent
D．were; would have prevented
答案
答案：A
考查虚拟语气。根据时间状语last Friday，说明指的是过去的情况，所以if引导的从句要用过去完成时，而主句要用助动词+现在完成时。所以选A。