Thestudentworkedoutalltheproblemwithoutany___(difficult)答案是单数名词difficulty还是复数difficulties,为什么?
<p>问题：Thestudentworkedoutalltheproblemwithoutany___(difficult)答案是单数名词difficulty还是复数difficulties,为什么?<p>答案：↓↓↓<p class="nav-title mt10" style="border-top:1px solid #ccc;padding-top: 10px;">关宏志的回答：<div class="content-b">网友采纳 difficulty 单数,否定句中前面加了any,用单数
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