18. A
19. D
20. A
1. are sent
2. are given
3. are collected
4. is not done
5. are sold
6. are taught
7. is asked
8. are told
9. are not kept
10. are caught
1. was sung
2. was bitten
3. was stolen
4. Was ___ given
5. were not made
6. was cooked
7. were not sent
8. were told
9. was drunk
10. was destroyed
1. He is told to take a long rest by the doctor.
2. This plant is not watered every day.
3. Beer is drunk all over the world.
4. Uniform is worn to school by students.