7、 1. Mary dances well. _________ 2. His father is reading. _________3. Tom is looking for his watch. _________4. He often plays violin after school. _________5. Mr. Green works in a university. _________ 6. The teacher taught us an English song. _________ 7. I h
8、ave bought this pen for two years. _________8. Nothing can live without water. _________ 9. Y