33. A. end                  B. mix                 C. agree               D. go

32. A. continued        B. stopped           C. started                   D. apologized

31. A. students               B. blackboard            C. window          D. clock

30. A. surprise                B. honor                    C. joy                  D. sorrow

29. A. reward                    B. equipment              C. punishment            D. disagreement

28. A. high                 B. excited            C. red                  D. white

27. A. angry               B. careful                C. sad                 D. uncertain

26. A. direct               B. immediate             C. less              D. more

25. A. attentive          B. interested        C. fit                    D. smart

24. A. stay                  B. do                   C. feel                 D. agree