按要求转换句型。 1. All of my classmates like art. (改为否定句) _____ _____ my classmates likes art. 2. No one knows about it. (改为反意疑问句) No one knows about it, ______ _______? 3. I went to bed after I finished my homework. ( 改为同义句) I ______ go to bed ______ I finished my homework. 4. If it doesn't rain tomorrow, we will go to the beach. (改为同义句) _______ it _____, we will go to the beach. 5. It's five months since the old man died. (改为同义句) Five moths ______ ______ since the old man died. 6. I saw he was doing his homework just now. (改为同义句) I saw _____ ______ his homework just now. 7. We can't finish the work before ten. (改为被动语态) The work _____ _____ finished by me before ten. 8. The box is so heavy that I can't carry it. (改为同义句) The box isn't ______ ______ for me to carry. 9. I haven't seen her since last week . (对划线部分提问) _____ _____ haven't you seen her? 10. Chinese is the most important subject of all. (改为同义句) Chinese is more important than _____ _____ subject.