Question

— Where was your father when I called you, Tony?
— He ____________ his car.

A．washes

B．washed

C．is washing

D．was washing

Answer 1

D

根據問句內容可知問的是當我打電話給你時，你的父親正在做什么，故其答語應該為過去進行時，其結構是：主語+were·was+doing sth，故選D，符合句子結構。