Are sentences below right? 1. I am reading a very interesting book right now. 2. The floor looks as if it were new. Who has polished it? 3. Look! The kids are watching TV. 4. This came taste good, I'll buy it. 5. The guests have already come. Where Is the host? 6. Sorry. I have sat down because I am tired. 7. You look good today! Have you had a good night? 8. Martin has been to Greece five times. 9. She appears to be sad. She had might heard about the accident. 10. Do you know Deborah? She comes for dinner tomorrow.