1. She has been studying English for 5 years.
2. Peter has been coming here on holiday every year since 1989.
3. She has been teaching our group for 2 years.
4. How long have you been waiting here?
5. It has been raining for over 2 hours.
6. I have been writing this report for 5 days.
10. I have been trying to stop smoking since 1985.