Now the world’s attention the stock markets，as they have a great influence on the world’s economy.
A. is fixing on
B. has fixed on
C. is being fixed on
D. had been fixed on
网友回答
A. is fixing on
B. has fixed on
(答案→)C. is being fixed on
D. had been fixed on
解析：
考查动词的时态和语态。fix和attention之间是动宾关系，故排除A、B两项；再根据now可知，此处应用现在进行时的被动语态。