选词填空 be allowed to, instead of, clean up, be strict with, be good for, at present, think of, have…off, at least, at that age prefix = o ns = 'urn:schemas-microsoft-com:office:office' / 1. His father asked the teacher to _____ his son. 2. _____,computer is the most important tool for the people in the world. 3. You should pay $ 20 for the book _____. 4. What do you _____ your trip to London? 5. Visitors _____ take photos here. 6. He was too shy to talk to the girls _____. 7. It is necessary to _____ your desk every day. 8. I'm so busy. I do not _____ a day _____ for two months. 9. Sometimes it _____ your health to drink some wine. 10. You are too fat. I think you have to eat more vegetables _____ meat.