过去进行时.主语+was/were+vimp[at.yesterday]1陈述句2一般疑问句3肯定回答/否定回答.

问题描述:

过去进行时.主语+was/were+vimp[at.yesterday]1陈述句2一般疑问句3肯定回答/否定回答.

I was watching TV at 8 o'clock yesterday.
Were you watching TV at 8 o'clock yesterday?
Yes, I was./No, I wasn't.