* Bài 2:
1. This is the first time my father has driven a car
2. It is the first time I have meet a famous singer
3. It is the first time she has been to the ballet
4. This is the first time she has drunk Coca cola 
5. It is the first time I have read this book
6. It is the first time I have meet an intelligent student
7. This is the first time I have seen snow before
8. My grandfather has never been in hospital

* Bài 3:
1. It is over 3 months since Tom had his cair cut
2. It is 2 years since my father last went to Hanoi 
3. It is years since I enjoyed myself so much
4. It is 2 years since I ate this kind of food
5. It is hours since Mary rang 
6. It is 4 years since We last saw him
7. I haven't seen them for over a year
8. I haven't played football for more than ten years

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13. She has worked as a book keeper for this company for 5 years
14. I started working for the company a year ago
15. She has studied English for 6 years
16. When did you start studying English?
17. How long has she done research on lung cancer?
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1. This is the first time my father has driven a car
2. It is the first time I have meet a famous singer
3. It is the first time she has been to the ballet
4. This is the first time she has drunk Coca cola 
5. It is the first time I have read this book
6. It is the first time I have meet an intelligent student
7. This is the first time I have seen snow before
8. My grandfather has never been in hospital
________________________________________
1. It is over 3 months since Tom had his cair cut
2. It is 2 years since my father last went to Hanoi 
3. It is years since I enjoyed myself so much
4. It is 2 years since I ate this kind of food
5. It is hours since Mary rang 
6. It is 4 years since We last saw him
7. I haven't seen them for over a year
8. I haven't played football for more than ten years