【正文】
21. I like collecting stamps and singing. (改為否定句) 22. He often cleans his bedroom. (改為一般疑問(wèn)句) 23. My mother is watering flowers in the garden. (對(duì)畫線部分提問(wèn)) 24. David and Mike are going to planting trees this afternoon.(對(duì)畫線部分提問(wèn)) 25. He did his homework in the classroom. (改為否定句) 26. Wang Bing is heavier than Gao Shan. (對(duì)畫線部分提問(wèn)) 27. Tom jumps as far as Mike. (改為否定句) 28. I see a man behind me. (改為一般過(guò)去時(shí)) 29. The boy can jump higher than the girl. (改為否定句) 30. It is hot in summer in New York. (對(duì)畫線部分提問(wèn)) 31. Liu Tao needs some pencils. (改為否定句) 32. She is an English girl. (變?yōu)閺?fù)數(shù)) 33. They are our women