Lindawasbusywhenwewenttoseeheryesterday.She________foranexam.A.studiedB.wasstudyingC.hadstudiedD.hasstudied
<p>问题：Lindawasbusywhenwewenttoseeheryesterday.She________foranexam.A.studiedB.wasstudyingC.hadstudiedD.hasstudied<p>答案：↓↓↓<p class="nav-title mt10" style="border-top:1px solid #ccc;padding-top: 10px;">彭忠利的回答：<div class="content-b">网友采纳 答案B 过去某一时刻正在发生的动作,用过去进行时．
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