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

本題ask后跟的是一個從句，應該用陳述的順序，故不選CD，本題主句的動詞是過去式，故從句也用過去式，故本題選B。