36. He said "They will take you to the hotel"
=> He said that they would take you to the hotel
37. Get up early or you will miss the bus
=> If you don't get up early, you will miss the bus
38. He started working 5 years ago
=> He has worked for 5 years
39. Although he has a lot of money, he feels unhappy
=> Despite having a lot of money, he feels unhappy
40. They have just bought an expensive car
=> An expensive car has just been bought ('by them' có thể có hoặc không)
P/s: em lớp 7 nên cũng không biết đúng sai thế nào, thỉnh cầu người kiểm tra lại kĩ càng nha :D