按要求改写下列句子,每空一词.

1. My sister was ill last week. (改为一般疑问句)

________ ________ sister ill last week?

2. They were very busy last Sunday. (改为否定句)

They ________ ________ very busy last Sunday.

3. Did you go to the bookstore yesterday? (作否定回答)

________, I ________.

4. Tom bought a lot of gifts. (改为一般疑问句)

________ Tom ________ a lot of gifts?

5. They watched a movie about sharks last night.(改为否定句)

They ________ ________ a movie about sharks last night.