Question

The woman asked the policeman where ________.

A．the post office is	B．the post office was
C．is the post office	D．was the post office

Answer 1

B

本题ask后跟的是一个从句，应该用陈述的顺序，故不选CD，本题主句的动词是过去式，故从句也用过去式，故本题选B。