用所给动词的正确时态、语态或形式填空，将答案写在横线上。 1. Mr Brown will go fishing tomorrow if it (not rain). 2. Kate (borrow)some books from the library yesterday. 3. Listen! Someone (knock) at the door. 4. Mr Chen (teach) English in our school for ten years. 5. You (speak) at the meeting tomorrow, aren't you? 6. When I walked past his house, I heard him (play) the piano. 7. The heavy snow stopped them from (leave) the hotel. 8. How many fridges (produce) in China last year? 9. Mike told me that he (be) to New York twice. 10. The teacher told us that light (travel) much faster man sound.