19. A. equipped B. delivered C. transferred D. received

20. A. worked B. pumped C. watched D. contented

1. A. invited B. attended C. celebrated D. displayed

2. A. removed B. washed C. hoped D. missed

3. A. knocked B. naked C. stopped D. called

4. A. looked B. laughed C. moved D. stepped

5. A. wanted B. parked C. stopped D. watched

6. A. laughed B. passed C. suggested D. placed

7. A. believed B. prepared C. involved D. liked

8. A. lifted B. lasted C. happened D. decided

9. A. practiced B. ranged C. washed D. touched

10. A. collected B. changed C. formed D. viewed

11. A. walked B. entertained C. reached D. looked

12. A. watched B. stopped C. pushed D. improved

13. A. approached B. stocked C. developed D. painted

14. A. admired B. looked C. missed D. hoped

15. A. played B. admired C. liked D. called

16. A. collected B. discarded C. watched D. wanted

17. A. placed B. practiced C. stopped D. named

18. A. hoped B. attracted C. added D. participated 

19, A

20, D

1, D

2, A

3, C

4, C

5, A

6, D

7, C

8, C

9, B

10, A

11, B

12, D

13, D

14, A

15, C

16, C

17, C

18, A