He_____inthisfactoryfor20yearsalready．（）A.willworkB.worksC.hasworkedD.isworking
<p>问题：He_____inthisfactoryfor20yearsalready．（）A.willworkB.worksC.hasworkedD.isworking<p>答案：↓↓↓<p class="nav-title mt10" style="border-top:1px solid #ccc;padding-top: 10px;">李风华的回答：<div class="content-b">网友采纳 答案：C．根据"He _____ in this factory for 20years already"中的"for 20years"可知work这个动作从20年前一直延续到现在，要用现在完成时，现在完成时的构成：主语+have/has+动词的过去分词．故选C．
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