Bythetimethefireenginesarrived,thehouse__totheground.awasburnedbhasbeenburnedchadbeenburneddshouldhavebeenburnedbythetime是用于对将来的假设还是什么呢?
<p>问题：Bythetimethefireenginesarrived,thehouse__totheground.awasburnedbhasbeenburnedchadbeenburneddshouldhavebeenburnedbythetime是用于对将来的假设还是什么呢?<p>答案：↓↓↓<p class="nav-title mt10" style="border-top:1px solid #ccc;padding-top: 10px;">马千里的回答：<div class="content-b">网友采纳 Cbythetime是完成时的标志,即：从句出现bythetime,主句要用完成时态.此题的从句是过去时态,所以主句使用过去完成时,若从句是现在时态,则主句用现在完成时.意思是：等到救火车到达的时候,房子早已烧尽了.
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