I,1. We shouldn't throw rubbish on the street.
2. My house will be surounded by tall trees and blue see in the future.
3. Robots could be lift heavy things some years ago.
4. When you go out of the bedroom, you will turn off the lights.
5. Nick is going on a picnic tomorrow.
II, 1. If we use the car all the time, we will make the air dirty.
2. In the future, home robots will do our homework.
3. She likes watching television.
4. No river is longer than the Nile.
5. You must do your homework.
III, 1, My mother will buy a red cả next Sunday
2, How long does Nam go to school everyday?
3, If we keep the environment clean, we will live heathier life.
