1. I haven't seen her since 2005.
2. A book on biology is written (by him).
3. It is interesting to go swimming in the summer.
4.His mother punished him.
5. Mr. Ha asked Minh not to play games too much.
6. Mary is taller than Tom.
7. What's the weather?
8.  My father asked me to turn down the radio for him.
9.  They cut down many trees to make paper.
10. Affter she had cleaned the house, she went to the market.