【题目】Now the world’s attention ________ the stocking markets, as they have great influence on the world’s economy.
A. is fixing on B. is being fixed on
C. has fixed on D. had been fixed on
在线课程【答案】B
【解析】考查时态语态。句意：现在世界关注的焦点都在股票市场上，因为它们对世界经济已经产生了很大的影响。 attention与focus之间为被动关系，Now提示用现在进行时。