Làm giúp :3 46. She is young , but she has wona lot of prizes. => Although... 47. Minh last wrote to his pen pal five months ago => Minh hasn't... 48. They usually wore jeans when they were young => They used... 49. SOmeone gave Mayr this present an hour ago => Mary.... 50. We don't have a lot of money,so we don't buy a lot of new books => If we....

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