单项选择题

A．who
B．what
C．that
D．which
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单项选择题
A．HaveB．HadC．HavingD．Had been
A．Have
B．Had
C．Having
D．Had been
单项选择题
A．dealB．dealtC．be dealtD．dealing
A．deal
B．dealt
C．be dealt
D．dealing
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