20.A. until B. though

C. as D. if

21.A. stop B. keep

C. forget D. imagine

22.A. excited B. nervous

C. sad D. serious

23.A. continue B. prefer

C. regret D. remember

24.A. praised B. played

C. ruined D. wasted

25.A. same B. opposite

C. real D. general

26.A. room B. office

C. hall D. car

27.A. in danger B. in control

C. in need D. in trouble

28.A. test B. show

C. break D. performance

29.A. changed B. failed

C. missed D. passed

30.A. worrying about B. waiting for

C. asking about D. earing for

31.A. taught B. advised

C. followed D. asked

32.A. Why B. When

C. How D. Where