1. They go to the seaside every year but this year they are going to the mountains. 2. I can’t open the door. I have lost my key. 3. Who knows what she is talking about? She never makes any sense. 4. Everybody knows the world’s rainforests are disappearing. 5. My dress is ruined. What have you done? 6. Have you seen Laura yet? She is staying with us this week while her house is being redecorated. 7. More and more people are becoming redundant. 8. I’m sorry, but she isn't working today. She has taken a day off. 9. The sun rises in the east and sets in the west. 10. Our math teacher usually gives us a lot of homework - but not today. 11. People are getting frustrated with the prices going up every day. 12. Look how well he is playing today. I have never seen him move so fast. 13. This season he is playing for Liverpool. Who knows whether he will stay or not? 14. What are you doing? Why are you lying in bed? Didn't I tell you to tidy up your room? 15. Tom is selling his car. Do you know how much he wants for it? 16. I can’t stand here in the rain. I am getting wet. 17. Listen! Somebody is playing my favourite song. I haven't heard it for such a long time. TỔNG HỢP THÌ 1. In all the world, there are only 14 mountains that reach above 8,000 meters. 2. He sometimes comes to see his parents. 3. When I came, she had left for Dalat ten minutes ago. 4. My grandfather has never flown in an airplane, and he has no intention of ever doing so. 5. We have just decided that we will undertake the job. 6. He told me that he would take a trip to California the following week. 7. I knew that this road was too narrow. 8. Right now I am attending class. Yesterday at this time I was attending class. 9. Tomorrow I'm going to leave for home. When I arrive at the airport, Mary will be waiting for me. 10. Margaret was born in 1950. By last year, she had lived on this earth for 55 years. 11. The traffic was very heavy. By the time I got to Mary's party, everyone had already arrived. 12. I will graduate in June. I will see you in July. By the time I see you, I will have graduated. 13. I visited my uncle's home regularly when I was a child. 14. That book has been on the table for weeks. Haven't you read it yet? 15. David is washing his hands. He has just repaired the TV set. 16. Have you been here before? Yes, I spent my holidays here last year. 17. We have never met him. We don't know what he looks like. 18. The car will be ready for him by the time he comes tomorrow. 19. On arriving at home I found that she had just left a few minutes before. 20. When we arrive in London tonight, it probably will be raining. 21. It is raining hard. We can't do anything until it stops. 22. Last night we were watching TV when the power failed. 23. That evening we stayed up to talk about the town where he had lived for some years. 24. I sat down for a rest while the shoes were being repaired. 25. Half way to the office Paul turned round and went back home because he had forgotten to turn the gas off. 26. London has changed a lot since we first came to live here. 27. While we were talking on the phone the children started fighting and broke a window. 28. He used to talk to us for hours about all the interesting things he had done in his life. 29. You know she has been standing looking at that picture for the last twenty minutes. 30. I have spent a lot of time travelling since I got this new job.