Question

【题目】-- I couldn’t find David yesterday. Where was he then ?

-- He ________ for a speech at home.

A. prepares B. is preparing C. was preparing D. prepared

Answer 1

【答案】C

【解析】句意：——昨天我无法找到大卫。他那时在哪里？——他正在家里准备一个演讲。根据Where

was he then?可知此处询问他那时正在哪里，故用过去进行时，was preparing。故选C。