Socialandculturalactivitiesforseniorcitizensoverthepastseveralyears．（）A.conductedB.wereconductedC.haveconductedD.havebeenconducted

Question

Social and cultural activities for senior citizens ______ over the past several years．（　　）

A. conducted

B. were conducted

C. have conducted

D. have been conducted

Answer 1

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\u9488\u5bf9\u8001\u5e74\u4eba\u7684\u793e\u4f1a\u548c\u6587\u5316\u6d3b\u52a8\u5e94\u8be5\u662f\u88ab\u5f00\u5c55\uff0c\u4e14\u7ed3\u5408\u65f6\u95f4\u72b6\u8bedover the past several years\uff0c\u53ef\u77e5\u5e94\u7528\u73b0\u5728\u5b8c\u6210\u65f6\u7684\u88ab\u52a8\u8bed\u6001\uff0e\u6545\u9009D\uff0e" "latex":"

\u7b54\u6848\uff1aD\uff0e
\u9488\u5bf9\u8001\u5e74\u4eba\u7684\u793e\u4f1a\u548c\u6587\u5316\u6d3b\u52a8\u5e94\u8be5\u662f\u88ab\u5f00\u5c55\uff0c\u4e14\u7ed3\u5408\u65f6\u95f4\u72b6\u8bedover the past several years\uff0c\u53ef\u77e5\u5e94\u7528\u73b0\u5728\u5b8c\u6210\u65f6\u7684\u88ab\u52a8\u8bed\u6001\uff0e\u6545\u9009D\uff0e"}