10.When I arrived at his office , he ______ on the phone.(speak)

二.按要求进行句型转换。

1. We were having a PE class at four yesterday afternoon.(改为否定句)

We _______ ________ a PE class at four yesterday afternoon. 2. Kate was reviewing her lessons at eight last night. (改为一般疑问句，做肯，否回答，对划线部分提问)

3. He ran in the park .(用at this time yesterday改写) 4. They were playing computer games at nine last night.( 对划线部分提问) 5. I was reading a novel at three yesterday afternoon.( 对划线部分提问)

三.根据汉语提示完成句子。

1． 他们那时不在打排球。

They _______ _______ volleyball at that time.

2． 当你回来时，他在看电视吗？

_______ he _______ Tv when you came back?

3． 昨天中午他在哪里等你？

_______ _______ he _______ for you at noon yesterday ?

4． 当我离开时，他正在做家庭作业。

He ________ ________ his homework when I left.

5． 正当他们扫地的时候，老师进来了。 While they_______ _______ the floor , the teacher came in.

四、单选

1 What ______ from three to four yesterday afternoon? 3