题目内容：

句型转换

1.—__________ were you doing at 10:00 last night? (根据答语，完成问句)

—I was playing computer games.

2.Jack was sleeping in the sofa when his mother got back home. (对画线部分提问)

__________ __________ Jack sleeping in the sofa?

3.The twins were talking loudly when the teacher came in. (用while改写句子)

__________ the twins were talking loudly, the teacher __________ in.

4.Mary was buying some clothes in the store. (改为否定句)

Mary __________ ___________ _________ clothes in the store.

5.The twins are reading an English storybook now. (用at that time last night改写句子)

The twins _________ ___________ an English storybook at that time last night.