1. Thousands of fans were attracted by the football match
- S was/were VPII by O
2. Five million bottles of champagne will be produced in France next year
- S will be VPII by O
3. vốn dĩ đã là câu bị động
4. Uniforms have to be worn by the students when they are at school
- S have/has to be VPII by O
5. A cake is being made by my mother now
- S am/are/is being VPII by O
6. The floor is being cleaned by Lan
- S am/are/is being VPII by O