45．A. in                     B. about                       C. for                D. after

44．A. touch                B. smell                       C. have                 D. feel

43．A. disappeared              B. ran                       C. looked                  D. came

42．A. Before                     B. When                       C. Unless               D. Since

41．A. unsafe               B. unimportant              C. unfamiliar      D. unfriendly

40．A. news                 B. idea                         C. message            D. thought

39．A. up                    B. on                           C. back                 D. out

38．A. kiss                  B. beat                         C. pass                  D. ask

37．A. interesting         B. strange                  C. funny                D. exciting

36．A. preferred           B. chose                       C. agreed               D. hoped