用所给单词的适当形式填空。
1. Must we _____( start) the work at once?
2. —Where _____ (be) our English teacher?
    —She _____ (talk) with some students over there.
3. Mary got a lot of presents on her _____ (twelve)birthday.
4. Beijing is a very nice place_____ (live) in.
5. What time _____ Mr Read _____ ( have) lunch every day?
6. I _____ (do) the washing tomorrow.
7. We _____ (not have) any classes next week.
8. They all like to _____ (call) me Bob.
9. They are beginning _____ (pick) the apples.
10. I want to go to the city _____ (call) Shanghai.