Đây là một số câu văn tiếng Anh cần sửa lỗi ngữ pháp và cấu trúc. Dưới đây là phiên bản sửa chữa của các câu này: 17. He smokes too much; perhaps that's why he can't get rid of his cough. 18. He doesn't do any exercise; that's why he is so unhealthy. 19. They speak French to her, not English, so her English doesn't improve. 20. I live near my office, so I don't spend much time traveling to work. 21. He asks his parents for a loan but he doesn't say what he wants the money for, so they don't agree. 22. We don't have any matches, so we can't light a fire. 23. The flats are not clearly numbered, so it is very difficult to find them. 24. I am not a vegetarian; so I don't have anything suitable for a vegetarian in the fridge now. 25. I don't have much time, so I read very little. 26. He works hard and he will pass his exam. 27. He didn't pass the exam because he didn't work hard. 28. We can't avoid waiting by booking the tickets in advance. 29. She didn't hurry so she missed the train. 30. They wanted to buy the house, but they didn’t have enough money. 31. We must go or you will be late. Những câu trên đã được sửa lỗi ngữ pháp và cấu trúc để trở nên chính xác hơn trong việc diễn đạt ý nghĩa của từng câu văn trong tiếng Anh.