问题详情

A house B household C home D circle
42. A unwise B unintelligent C unpopular D unfortunate
43. A falls B arrives C drops D happens
44. A away B outdoors C indoors D far
45. A when B as C if D though
46. A have originated B be originating C be originated D originate
47. A concerned about B related with C associated with D connected in
48. A especially B specially C frequently D rarely
49. A as B for C in D of
50. A broken up B broken off C broken away D broken down 请帮忙给出正确答案和分析，谢谢！