1. I have been reading a book.
2. I am going to the doctor next Monday.
3. They had an accident.
4. We were able to climb to the top of the mountain.
5. What do you think of England?
6. We have been studying the whole evening.
7. I was walking down the street.
8. My sister never reads books.
9. We had been wandering to two hours.
10. When's she getting married?
11. Jane could not walk after the accident.
12. I've never been to India.
13. I think I'll go to bed now.
14. He didn't feel well yesterday.
15. My dad works as an accountant.
16. We were playing basketball yesterday afternoon.