1 Are the boys running about in the garden.?
2 am I doing
3. Are John and his friends going to the library?
4. Is Ann sitting at her desk.? Is she studying geography?
5. Is a young man standing at the window?Is he smoking a cigarette?
6. Is the old man walking about the room?
7. Is the dog lying on the floor?
8. Is he having a break?
9. Are we studying Japanese?.
10. Is my mother lying on the sofa.?
1 aren't running
2 aren't (ain't) doing
3 aren't going
4is not sitting
5 isn't standing
6 isn't walking
7 is not lying
8 isn't having
9 aren't studying
10 isn't lying