1. It's is happy to receive letters from relatives and friends.
2. Ba shouldn't chat with his friends on Facebook.
3. Jimmy is the best pianist in this orchesta.
4. How shy a girl is!
5. Her colluagues are liked to work with by the secretary because thay are very helpful.
6. Whose document is this?
7. Our summer vacation lasts two months.
8. Could you take care of my kitty while we are away?
9. He spent two hours each day on doing his homework.
10. You'd better wear these gloves when playng baseball.