.........................

5. My best friend and I have known each other for over five years. 6. Lan can't go out with you because she hasn't finished her homework yet. 7. My close friend loves this writer and he has read all of his books. 8. My uncle hasn't smoked for two weeks, he is trying to give it up. 9. Nam lived in Da Nang for twenty years and then he went to his hometown. 10. I didn't get many good marks last year, but I have got lots of excellent marks this year. Exercise 10: 1. We are going to watch a movie tonight. 2. I haven't had this much fun since I was a kid. 3. Jessica has lunch in the cafeteria every day. 4. Has Frank presented his ideas to the director yet? 5. When Jim said that he liked me, I knew that he was lying. 6. You can't borrow my calculator because it doesn't work. 7. It is raining quite hard - perhaps we shouldn't go out now. 8. The children were playing in the park when it started to rain. 9. When I was in high school, we often played volleyball at weekends. 10. You won't find him at home right now because he is studying at school.