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.