单项选择题


A．when
B．since
C．while
D．where
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单项选择题
A．get on forB．get uponC．get intoD．get on to
A．get on for
B．get upon
C．get into
D．get on to
单项选择题
A．whichB．of whichC．thatD．of that
A．which
B．of which
C．that
D．of that
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