填空题 Discontent with the cost and (sometimes) impersonal delivery of health care (has fueled) growth in (alternative) medicine, now a (＄14 billions-a-year) industry. A. sometimes B. has fueled C. alterntive D. ＄14 billions-a-year
  • 1、
【正确答案】 1、B改为have fueled。    
【答案解析】句子主语是discontent和impersonal delivery of health care，谓语动词应用复数形式。