1. What a mean dog, she barks at me, walk away! 2. I made an apple pie, would you like a slice? 3. We go to the sea every summer. 4. I've been waiting for you for 40 minutes. 5. This artist paints very well. 6. They will build this house next year. 7. Wait a minute, the secretary is on the phone. 8. They haven't written the test yet. 9. If we have time, we will make a cake. 10. They listened to music while I slept. 11. We bought a new TV yesterday. 12. We don't watch TV in the morning. 13. They said they would come tomorrow. 14. He has been running since two o'clock. 15. He was reading a book when I arrived. 16. Katya studied a lot before she passed the exam. 17. When I woke up, they had already watched the movie for 15 minutes. 18. Last week I met Mr. Brown. 19. He said that it had snowed all night yesterday. 20. My friend bought a car before the price went up.