The moment 2011 BWF Super Series Masters Finals open, all the fans and the viewers cheered.
A. declared
B. were declared
C. had declared
D. have been declared
网友回答
A. declared
(答案→)B. were declared
C. had declared
D. have been declared
解析：考查时态语态：2011年世界羽联超级系列赛总决赛一被宣布开始，所有的粉丝和观众都欢呼起来。从后面的all the fans and the viewers cheered.可知用一般过去式，而且是被动关系，选B。