◎ 题干
They ____ have arrived at lunchtime but their flight was delayed.

[     ]

A. will
B. can
C. must
D. should
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“用所给动词的正确形式填空。1. Theboy ( draw ) apicturenow.2. Listen!Somegirls ( sing )intheclassroom.3.Mymother ( cook )somenicefoodnow.4.Whatyou ( do )now…”主要考查了你对  【虚拟语气】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。