1. He said he wanted to know more information about the English course.

Mẫu câu tường thuật: want => wanted.

2. It is believed that the Perfume Pagoda was built during the reign of Le Thanh Tong in the 15th century.

Câu bị động: It is/was believed that ....

3. I used to stay up late to watch football matches last year.

used to + V(nt) : đã từng làm việc gì đó rất nhiều trong quá khứ nhưng giờ không còn nữa.

4. The teacher says that I'm the hardest student in the school.

5. It was so unprofessional of her not to prepare for the presentation.

6. There have been some gradual upgradations in the traffic system in the country in the last decade. 

1. He said he wanted to know more information about the English course.

2. It is believed that the Perfume Pagoda was built during the reign of Le Thanh Tong in the 15th century.

3. I used to stay up late to watch football matches last year.

4. The teacher says that I'm the hardest student in the school.

5. It was so unprofessional of her not to prepare for the presentation.

6. There have been some gradual upgrades in the traffic system in the country in the last decade. 

#LemonXTree