【题目】Now the world’s attention____ the stock market, as they have a great influence on the world’s economy.
A. has fixed on B. is fixing on
C. is being fixed on D. had been fixed on
在线课程【答案】C
【解析】考查时态，根据前面的“now”可知，谈论的是现在发生的事情，所以用现在进行时，又因为“attention”是“被放在股票市场上”，所以用被动语态，故选C.