During the last three decades, the number of people participating in physical fitness programs sharply.
A.was increasing B.has increased
C.had increased D.will be increasing
During the last three decades, the number of people participating in physical fitness programs sharply.
A.was increasing B.has increased
C.had increased D.will be increasing
【解析】选B。考查时态。句意:近30年来,参加健身活动的人数一直在急剧增加。during the last three decades近30年来,这是包括现在时间在内的时间段,是现在完成时的时间标志,故选B。