US house prices has risen by 12.4% over the 12 months to the end of July, pletely his plan to buy another apartment.
A. ruined
B. ruining
C. to ruin
D. ruins
网友回答
A. ruined
(答案→)B. ruining
C. to ruin
D. ruins
解析：考查非谓语。句义：美国的房价已经上涨了百分之十二，完全毁了他再买一所房子的计划。这是非谓语，排除D，done表被动，to do 表意外结果，排除C 和D，doing，表必然结果，所以B正确。