1. In all the world, there are only 14 mountains that reach above 8,000 meters. 2. He sometimes comes. 3. When I came for Dalat ten minutes ago, she had already left. 4. My grandfather never flies in an airplane, and he has no intention of ever doing so. 5. He told me that he would take a trip to California the following week. 6. I knew that this road was too narrow. 7. Right now I am attending class. Yesterday at this time I was attending class. 8. Margaret was born in 1950. By last year, she had lived on this earth for 55 years. 9. The traffic was very heavy. By the time I got to Mary's party, everyone had already arrived. 10. I used to visit my uncle's home regularly when I was a child. 11. That book has been on the table for weeks. Haven't you read it yet? 12. David is washing his hands. He just repaired the TV set. 13. Have you been here before? Yes, I spent my holidays here last year. 14. We have never met him. We don't know what he looks like. 15. On arriving at home, I found that she had just left a few minutes before. 16. It is raining. 17. Last night we were watching TV when the power failed. 18. That evening we stayed up to talk about the town where he had lived for some years. 19. I sat down for a rest while the shoes were being repaired. 20. Halfway to the office, Paul turned back home because he had forgotten to turn the gas off. 21. London has changed a lot since we first came to live here. 22. While we were talking, the children started fighting and broke a window. 23. He used to talk to us for hours about all the interesting things he had done in his life. 24. I have spent a lot of time traveling since I got this new job. 25. When we were at school, we all studied Latin. 26. When I met him, he had been working as a waiter for a year. 27. After he finishes writing, he will go down to write some letters. 28. She has had a hard life, but she's always smiling.