1. The Earth goes around the sun.
2. She is beautiful.
3. What does he do everyday ?
4. I study history once a week.
5. She sometimes writes a letter.
6. They aren't thin.
7. Lan doesn't have Maths on Tuesday.
8. Lan doesn't watch TV everyday.
9. I am not happy.
10. Is your father old ?
11. I am Lan.
12. What does - do everyday ?