50. A. return B. arrive C. leave D. travel
49. A. decide B. like C. hope D. need
48. A, can B. must C. should D. have to
47. A. When B. If C. Because D. Until
46. A. Someone B. Anyone C. Everyone D. No one
45. A. changes B. programs C. attractions D. performances
44. A. popular B. busy C. crowded D. open
43. A. little B. few C. less D. fewer
42. A. see B. do C. play D. take
41. A. Go B. Come C. Walk D. Welcome