用所给动词的适当形式填空。 |
1. What _____ you _____ (do) while the others _____ (clean) the classroom? 2. At the moment, who _____ (help) dad in the garden? 3. Mr. Brown _____ (be) a soldier since 1984. 4. Nobody _____ (finish) the homework yet. 5. How long _____ you _____ (study) in this school? 6. Every time I _____ (want) to sleep, he _____ (make) some noise and I _____ (be) angry at that. 7. I _____ (forget) to bring my ruler, so I _____ (have) to borrow one. 8. If anybody _____ (break) the model plane, he _____ (have) to pay for it. 9. Michael _____ (be) to the zoo twice this month. 10. I _____ never _____ (see) a zebra before. |