34. How long do you suppose it is _________ he arrived there?

A. this            B. that          C. it              D. them

33. Many students in this school make __________ a rule to come to the evening classes even on Saturdays.

A. hurting badly  B. being injured                 C. badly hurt               D. to be damaged

32. It’s said that George had a bad accident this morning on his way to school, ____ in the left leg.

C. considered; in which                     D. looked on; where

A. thought of ; where                      B. regarded; in which

31. He is ______ one of the most famous writers in the city_______ he lives.

A. to dealing       B. in dealing             C. dealing                D. to deal

30. The traditional approach ____ with complex problem is to break them down into smaller, more easily managed problems.