38. A. while B. and C. if D. then
37. A. jumps B. leans C. lies D. moves
36. A. flag B. map C. history D. people
35. A. buildings B. pools C. forest D. woods
34. A. offices B. blackboard C. classrooms D. windows
33. A. housework B. homework C. cleaning D. washing
32. A. at B. by C. after D. until
31. A. given B. prepared C. finished D. started
30. A. besides B. except C. without D. or
29. A. lunch B. cooking C. game D. supper