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主语是第三人称单数用was,其他人称用were.
3. 用法: 表示某一时刻正进行的行为, 与特定的过去时
间状语连用,常见的时间有: at 8 last night, at this time，
at that time, at that moment ，from…to…等
e.g. What were you doing at 10 yesterday morning?
I was writing a letter to my father at that moment.
1. —What were you doing this time yesterday?
—I ____ (sit) on the grass and drawing a picture.
2.It ____(rain) heavily at 9 last night .
3.____they ____(read) from 7 to 8 the day before yesterday？
4.My mother____ ____(not cook) for us at that time last Sunday.
when引导的时间状语从句用过去时，而while引导的时间状语从句用过去进行时。
1. 昨天我回到家时，我妈妈在洗衣服。
When I ________ home yesterday, my mother _____ ________ clothes .?
2.你在看电视时，你妹妹在干什么？ What ________ your sister ________ while you ________ ________ TV?
按要求完成下列各题。
Tom was running in the park at 7:00 yesterday morning.? (改为一般疑问句并作肯定回答)
I was flying kites with my friends at this time last Sunday.? (对划线部分提问)
3. They were playing basketball from three to four yesterday.?? (改为否定句)
用when和while填空。
1. He was looking for information on the Internet, the door bell rang.
2. He was making a model plane I
saw him.
3. I was running, my mother and my sister were flying a kite.
what were they doing at five yesterday afternoon in the school?
做4c,背诵Grammar Focus.