10.During the last three decades,the number of people partic

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10.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

B.has increased
During（in/ over) the last(past) + 时间段是【现在完成时】标志性状语.
因为它指的是始于过去,止于现在的一个时间段
翻译：在过去的30多年中,参与健身计划的人数已经明显攀升.

10.During the last three decades,the number of people partic during the last three decades,the number of people participa 英语翻译During the last two decades,a great number of studies ha the last decades of the 19th century The number of the people that killed during the earthquake i The number of people without jobs fell last month. the number of people who die aged last birthday是什么意思? 英语翻译Abstract:During the last two decades,there has been a gr 意思Iam sure the wide awake people of this country will partic 句型分析Logistics has evolved over the last three decades from t what is the biggest number of three? the number of travelers during the spring festival this year