49. A. donate B. sacrifice C. contribute D. drop
48. A. never B. always C. once D. immediately
47. A. action B. damage C. effects D. influence
45. A. small B. hairless C. round D. smart
44. A. With B. After C. On D. By
43. A. make B. stick C. keep D. tell
42. A. Interesting B. Available C. Important D. Impossible
41. A. away B. off C. out D. down
40. A. puzzlement B. tears C. expectation D. reluctance(勉强)