1. What is the largest lake in Viet Nam?

2. If we are hungry, we will be tired.

3. If they reuse old items, people will save the enviroment.

4. This robot is the smartest in the robot show.

5. My friends will go to the library this afternoon.

6. Our house will move to the new house next week.

7. We might stay there for a long time in the future.

8. Jenny thinks we might live with robots.

He has been to Sa Pa three times.