摘要：32．They have arrived at lunchtime but their flight was delayed. A．will B．can C．must D．should
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They ________ have arrived at lunchtime but their flight was delayed.
A．will
B．can
C．must
D．should
查看习题详情和答案>>They _________ have arrived at lunchtime but their flight was delayed．
[ ]
A．
will
B．
can
C．
must
D．
should