用适当介词填空。 1. If you work harder _____ now on, I think you will do better in the coming exam. 2. We sat around listening _____ music when my mother came in the room. 3. Look _____ the boy. He is dressed _____ a red T-shirt. How cool! 4. Miss Lin is very popular _____ teachers and students. 5. Go _____ this street, turn left _____ the second turning, and you'll find the park is front of you. 6. You shouldn't believe everything you read _____ the newspapers. 7. I'll tell you all _____ it when I get back. 8. You look tired. You'd better be out to play instead _____ working. 9. I usually walk to school, but _____ bus when it rains. 10. Teenagers should keep away _____ net bars.