问题
选择题
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
答案
答案：C
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。