用Be 动词的适当形式填空。
1. Jack ______ late for school yesterday, for he ______ ill.
2. I ______ in the same school as Ted last year.
3. The windows of the office ______ not open yesterday.
4. How old are you going to ______ next year?
5. Let's ______ good friends, shall we?
6. There ______ a lot of flowers in the garden last summer.
7. We ______ often hungry after a long trip.
8. The leaves ______ green in spring.
9. The weather tomorrow will ______ fine.
10. The wind last night ______ very strong.