b.
1. agree — agreement
2. prefer — preference
3. react — reaction
4. entertain — entertainment
5. prepare — preparation
6. popular — popularity
7. relax — relaxation
8. happy — happiness
b.

1. I remember MEETING Assel at a party a few months ago.
2. Don’t worry — I’ll remember TO GIVE you the book back.
3. Please stop MAKING so much noise! I want to go to sleep!
4. It was really hot in the car, so we stopped TO BUY some ice creams.
c.

c.
