52.( ) A. wave B. food C. wind D. time
51.( ) A. private B. valuable C. interesting D. unexpected
50.( ) A. visit B. contact C. address D. meet
49.( ) A. invited B. accepted C. welcomed D. dismissed
48.( ) A. cares about B. doubts about C. wonders about D. worries about
47.( ) A. managed B. hesitated C. determined D. remembered
46.( ) A. get through B. come across C. compare with D. keep up with
45.( ) A. Besides B. Despite C. Beyond D. Without
44.( ) A. natural B. harmonious C. perfect D. ordinary
43.( ) A. cruel B. unnecessary C. important D. impossible