1. My brother is younger than I am.2. It isn't cold in the room.3. Which of these books is the most interesting?4. There is an art gallery and three museums in our city.5. He feels much better today.6. Where is Peter? He is in the library. He is preparing his report.7. Our friend didn't come yesterday. He was busy. He will come tomorrow.8. When I came, my mother was cooking dinner.9. Does he come to work at 9 o'clock every day? I usually don't come at 9, I come at 9.30 (half past nine).10. What will you be doing at 6 o'clock tomorrow?11. Is there anybody in the house? No, there is nobody there.