单项选择题

Hardly (did he hear) his mother's (calling) (when) he realized that (it was already dark).

A．did he hear
B．calling
C．when
D．it was already dark
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I wish I (can) (fly to) the moon (by) spaceship (one day).
A．can
B．fly to
C．by
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No one except two students ______ the meeting.
A．has been late for
B．have been late for
C．was late for
D．were later for
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