1. The girl is standing at the bus stop.
2. I usually visit my grandparents on Sunday.
3. I am doing my homework now.
4. Tom rides his bike every day.
5. The children are working in the garden now.
6. We often go to school by bus.
7. Tim is watching his favourite cartoon.
8. Sometimes Mona gies to the theater.
9. The boys usually play football in the yard.
10. We are cleaning the classroom now.
11. Tina is not listening to the teacher now.
12. Ben is running very fast.
13. I often watch TV in the evening.
14. Pam is talking to her friend now.
15. Liz writes letters to her parents very often.
2. has just talked.
3. have already listened.
4. have already played.
5. has just started.
6. have not watched.
7. has not invited.