单项选择题

（）on an airplane before, the old lady felt very nervous.

A．Never having been
B．Having never been
C．Never to be
D．Never being

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单项选择题
He got to the railway station half an hour late,（）made us unhappy.

A．that
B．when
C．which
D．what
单项选择题
My opinion is as good（）

A．as he is
B．as or better than he
C．as or better than his
D．or better than his
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