1. My cat sleeps on the sofa right now.
2. They visit their grandparents every Sunday.
3. Last summer, we went camping in the mountains.
4. While I was cooking dinner, my roommate was watching TV.
5. By next year, she will have graduated from university.
6. The birds sing in the garden every morning.
7. We are having a barbecue party next weekend.
8. The Sun shone brightly yesterday afternoon.
9. How often do you go to the gym?
10. How long has she been waiting for her friend?
11. By the time we arrived, the baby had already left.
12. What were you doing when the power went out?
13. She has been crying for hours.
14. I haven't read a book since morning.
15. They haven't seen him for ages.
16. My grandparents have lived in this house for over fifty years.
17. Who won the award last year?
18. The train had already left when we arrived at the station.
19. Have you heard about the new restaurant downtown?
20. While she was studying for her exam, her phone rang.
21. He had been waiting for the bus for almost an hour.
