Chuyển các câu sau về dạng chủ động
Turn into the active voice:
1. Mai was taken to the zoo by her mother yesterday.
2. Khanh will be given a book by Viet tomorrow.
3. Tu Linh is being taught English by Mr Anh.
4. My Vi is often helped by To Quyen.
5. Some paper is recycled in the factory.
6. The glass was broken into pieces.
7. Some flowers can be watered by Nam Anh.
8. The dog has been beaten by the boy lately.
9. The dishes were washed by Tran yesterday.
10. The letter will be sent by Ngoc tomorrow.