1. Those books are mine.
2. A new car will be bought next week.
3. My father will repaint the room next year.
4. I have played the piano since 2018.
1. By 2020, people in Viet Nam will spend a lot of money on heating.
2. In the future, most people will travel by flying trains.
3. He won’t buy a driverless car next year.
4. My pen is on the table. Where is hers?
5. I think we will use solar energy in the future.
6. My books are on the table. Where are his?
7. I think it looks rather weird.