单项选择题


A．so old
B．very old
C．old enough
D．too old
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单项选择题
A．withB．becauseC．sinceD．thanks to
A．with
B．because
C．since
D．thanks to
单项选择题
A．becauseB．so thatC．asD．in order that
A．because
B．so that
C．as
D．in order that
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