1. Cell phones are used by a lot of people.
2. We hasn't been taught by Miss. Diep since the last semester.
3. Our English lessons are taught by Mr. Vinh.
4. That experiment is being done by a student.
5. We are given a free period by our teachers this Saturday to prepare the festival.
6. Was this dictionary bought by you two weeks ago?
7. Our teeth should be cleaned by us twice a day.
8. I am not impressed by Alan's knowledge about science and technology.
9. All of us are driven to school by her father everyday.
10. A new school is going to be built here by them next year.
Cho mình câu trả lời hay nhất ạ