根据句子意思填入所给单词的适当形式。
1. I (be not)a middle school student.
2. She (be)in Class Six, Grade One. We (be)all Young Pioneers.
3. Sam and I (be)in different classes.
4. I'm (UK). I'm from (UK).
5. There (be) a pencil-box and some books in the bag.
6. There (be) two bikes and a car near the house.
7. I can (see) some flowers on the table.
8. Would you like (borrow) it? Does he like (sing) ?
9. We (stay)at home on Sundays. He (go)to classes every week.
10. You must (find)those things.
11. Would you like (something) to drink ?
12 She often (buy)things in the shop.
13. (not jump)too high! Would you like (drink)tea?
14. The (child) are talking to a (visit).
15. What are (they)job?
16. I' ve (get) a stomachache.
17. Can you (look)after her?
18. Don' t (talk). Jim (do) his homework.
19. —What you (do) ? —I (close)the windows. Look ! The windows are (close)now.
20. I' m sorry (see) that.