What_______allthismorning?A.areyoubeingdoneB.haveyoubeendoingC.haveyoubeendoneD.areyoudoing
<p>问题：What_______allthismorning?A.areyoubeingdoneB.haveyoubeendoingC.haveyoubeendoneD.areyoudoing<p>答案：↓↓↓<p class="nav-title mt10" style="border-top:1px solid #ccc;padding-top: 10px;">付琨的回答：<div class="content-b">网友采纳 B A和c都有bedone,被动,不选 d是现在进行的主动,allthismorning说明不是现在进行的. 其实b改成hadyoubeendone更好
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