ex.2/b

2. I’m going to walk
3. will be
4.will break
5. are visiting
6. is going to study
7. won’t give
8. I’m playing
9. I’m going to watch

ex.3

2. to help
3. to help
4.washing
5. to wait
6. to wash
7. to wait
8. to play

ex.4

2. hurt
3. temperature
4. pain
5.injection
6. patient
7. sore
8. surgeon