21. A. admit B. receive C. accept D. adopt
20. A. normal B. naughty C. clever D. happy
19. A. protect B. assist C. attend D. comfort
18. A. nurse B. waitress C. guard D. guide
17. A. service B. favour C. business D .trade
16. A. grade B. course C. project D. relaxation
14. It’s going to be some time _____ he sees his father again, _____ business has just been started in Switzerland.
A. after; who B. since; who C. when; whose D. before; whose
13. Our bodies are strengthened by working out. _____, our minds are developed by learning.
A. Likely B. Similarly C. Probably D. Therefore
12. Taking pictures of snow is _____ Ken has spent much of the past years doing.
A. That B. which C. what D. how