2020年中考英语知识点之过去进行时谓语组成部分及句式

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谓语部分构成

was/ were+doing

句式

肯定句：I was watching TV at that time.

否定句：I was not (wasnt) watching TV at that time.

一般疑问句： Were you watching TV at that time?

特殊疑问句： What were you doing at that time?