They _____ have arrived at lunch time but the flight was delayed.A．shouldB．canC．_刷题宝

题干

They _____ have arrived at lunch time but the flight was delayed.

A．should

B．can

C．must

D．will

上一题下一题 0.64难度单项选择更新时间:2012-07-09 11:01:15

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