Everyoneofusshouldkeeptheclassroom___everyday.A.cleanb.cleanedc.cleaningd.toclean为什么不是C?Keepdoing=一直保持在某个状态
<p>问题：Everyoneofusshouldkeeptheclassroom___everyday.A.cleanb.cleanedc.cleaningd.toclean为什么不是C?Keepdoing=一直保持在某个状态<p>答案：↓↓↓<p class="nav-title mt10" style="border-top:1px solid #ccc;padding-top: 10px;">胡艳丽的回答：<div class="content-b">网友采纳 A.clean 这里clean是干净的意思.keepsth+形容词keepsb.+doing keepthedooropen/closedkeepmewaitingkeepthestudentscleaningtheclassroom.
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