what-he-(do)at this time yesterday
问题描述:
what-he-(do)at this time yesterday
答
what does he do at this time yesterday ?
答
What was he doing at this time yesterday.
因为有at this time 要用过去进行时。
答
what were he doing at this time yesterday ?昨天这个时候他在做什么?
答
What did he do at this time yesterday?他昨天这个时候做了什么?
答
要看具体语境
如果是单句,一般可以用
What was he doing at this time yesterday?