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

根据问句内容可知问的是当我打电话给你时，你的父亲正在做什么，故其答语应该为过去进行时，其结构是：主语+were·was+doing sth，故选D，符合句子结构。