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

[     ]

A. will
B. can
C. must
D. should
◎ 答案
查看答案
◎ 解析
查看解析
◎ 知识点
    根据n多题专家分析,试题“They _____have arrived at lunchtime but their flight was delayed. [ ]A. will B. can C. must D. should …”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。