— What were you doing when we were playing basketball yesterday afternoon?— I __

题型：不详难度：来源：

— What were you doing when we were playing basketball yesterday afternoon?
— I ______ the classroom.

A．was cleaning	B．have cleaned
C．will clean	D．clean

答案

A

解析

试题分析：句意：昨天下午当我们正在打篮球时，你正在做什么？结合语境可知下文描述的是过去某时正在进行的动作，故用过去进行时态。选A。