Đáp án:
1. The cashier used to do the accounts
->The accounts used to be done by the cashier
2. They have bought a new house since last week
-> A new house have been bought since last week
3.We are going to grow flowers in the front of garden
-> Flowers is going to be grown in front of the garden
4. Are they cleaning the floor now ?
-> Is the floor being cleaned now?
5. My family usually waters the plants and flowers in the late afternoon ?
->The plants and flowers are usually watered by my family in the late afternoon?
6. They fought the battle in 1623
->The battle was fought in 1623
cho mik tl hay nhất nha chúc bạn học tốt^^