50. A. climb up B. stand up C. sit up D. turn up
49. A. when B. if C. how D. why
48. A. peacefully B. painfully C. sadly D. bravely
47. A. enjoy B. experience C. sense D. imagine
46. A. distance B. hospital C. future D. sky
45. A. photo B. map C. view D. appearance
44. A. trees B. flowers C. houses D. birds
43. A. made B. rowed C. took D. sailed
42. A. garden B. farm C. mountain D. park
41. A. health B. dream C. world D. career