49. A. hold B. put up C. give up D. keep up
48. A. by B. for C. against D. beyond
47. A. flowing B. floating C. jumping D. running
46. A. high B. long C. fast D. often
45. A. And B. But C. Therefore D. Besides
44. A. usual B. hard C. easy D. funny
43. A. notice B. raise C. display D. collect
42. A. amazement B. information C. motivation D. environment
41. A. travel B. nature C. island D. flowers
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