ai giúp mình bài này với ạ chuyển thành bị động 29. He isn’t doing his homework. => .......................................................................................... 30. Where did you buy this shirt? =>....................................................................................................................................................... 32. Why do you help him? =>...................................................................................................................................................... 33. They never do the housework. =>.................................................................................................................................................... 34. Mary is looking after her brother now. =>...................................................................................................................................................... 35. She called me yesterday. =>...................................................................................................................................................... 36. Who sent that letter? =>.................................................................................................................................................... 37. Will you repair this electric cooker for me? =>..................................................................................................................................................... 38. Aren’t you going to keep that secret forever? =>....................................................................................................................................................... 39. Didn’t anybody advise him not to do that? =>........................................................................................................................................................ 40. People shouldn’t hunt and kill rare animals. =>...................................................................................................................................................