一、仿照例子，运用括号中的时间，把下列句子改写成为过去时态。
Ex: They are so busy today. (yesterday) They were so busy yesterday.
1. He is at school now. (yesterday morning)
_____________________________________________
2. I am not here. (last night)
_____________________________________________
3. They are at home now. (two days ago)
_____________________________________________
4. There are some books on the bookshelf. (yesterday)
_____________________________________________

、
5. She isn’t in the restaurant today. (two hours ago)

_____________________________________________
6. We aren’t at school in the afternoon. (last Sunday)
_____________________________________________
7. Is she in the classroom now (the day before yesterday)
_____________________________________________
8. Are they in the library today (last week)
_____________________________________________
9. It’s rainy and cool today. (yesterday)
_____________________________________________

…
10. The bookstore is crowded now. (last Monday)

二、请仿照例子，把下列句子改成否定句和一般疑问句，并进行回答。
Ex: I was at home yesterday morning.
I wasn’t at home yesterday morning.
Were you at home yesterday morning
Yes, I was. No, I wasn’t.
1. Mrs. White was a teacher two years ago.
否定句：___________________________________________
一般疑问句：________________________________________
肯定 / 否定回答：____________________________________

]
2. The film was so interesting.

否定句：___________________________________________
一般疑问句：________________________________________
肯定 / 否定回答：____________________________________
3. The children were in the gym before two o’clock.
否定句：___________________________________________
一般疑问句：________________________________________
肯定 / 否定回答：____________________________________
4. I was so tired yesterday.
否定句：___________________________________________
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一般疑问句：________________________________________

肯定 / 否定回答：____________________________________
5. My father was in the factory last Sunday.
否定句：___________________________________________
一般疑问句：________________________________________
肯定 / 否定回答：____________________________________