Phân tích vào chuyển các cau sau sang câu bị động 1. They often sell the tickets at the gate 2. The workers built this school 20 years ago 3. She makes some cakes every day 4. Ngoc writes email every night 5. They collected many books last week 6. They don’t clean their house every day 7. Thao didn’t receive the postcard at Tet
1. The tickets are often sold at the gate.
2. This school was built by the workers 20 years ago.
3. Some cakes are made every day.
4. Emails are written by Ngoc every night.
5. Many books were collected last week.
6. Their house is not cleaned every day.
7. The postcard was not received by Thao at Tet.
