Exercise 7:
1. to go → go
2. going → go
3. at → for
4. brush → brushes
5. takes → take
6. have → has
7. didn't → did
8. an → a
9. to → at
10. because → so
Execise 8:
1. You should take a rest and shouldn't carrry heavy things.
2. He shouldn't eat too much ice cream
3. You should go to the doctor's
4. You had better not play sports for a few days.
5. Does your son have a high fever ?
6. His father should not carry heavy things.
7. Nam should go to the dentist because he has a toothache
8. She had a bad cold so she didn't go to school.
9. She will take after her daughter to the doctor work.
10. Did you feel unwell and go home early yesterday ?
