Question

My mother was cooking while I_________ the radio.

A．listened to

B．have listened to

C．was listening to

D．am listening to

Answer 1

C

在英文中while引導時間狀語從句，通常用進行時態，本題的主句為過去進行時，故while從句也應該用過去進行時，結構為was或were+doing，故本題選C。