1. I have done my homework already
2. he is still doing his homework
3. they are drinking tea right now
4. we haven't had breakfast yet
5. he have visited the doctor last week
6. are they playing football? yes. they are playing in the yard
1. goes
2. are watching
3. is writing
4. drives
5. is sitting
6. is ringing
7. is studying
8. spending
9. go
10. is riding