【题目】By accepting lower prices, organizers can sell tickets that would ______ go unsold.
A. therefore B. otherwise
C. instead D. however
在线课程【答案】B
【解析】
试题分析:考查副词。A. therefore因此（因果关系）；B. otherwise否则（转折关系）；C. instead 反而（常与of连用）；D. however然而（转折关系）。句意：通过低价出售，组织者可以把原本买不去去的票卖出去，故选B。