1. а.1 гр. - playing, studying, watching, working
2 гр. - driving, using, writing
3 гр. - getting, running, sitting, swimming
b. 1. Is running
2. Are, using
3. Are Swimming
4. Am getting
5. Is Studying
6. Is, working
7. Are watching
8. Is making
9.is writing
10. Are, playing
2. Ну, там чтение, тут все понятно
3. 1. Get
2. Book
3. Leave
4. Buy
5. Stay