单项选择题

A．to buy
B．buying
C．having bought
D．from buying
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单项选择题
A．meetB．obtainC．careD．acquire
A．meet
B．obtain
C．care
D．acquire
单项选择题
A．orB．andC．excludingD．including
A．or
B．and
C．excluding
D．including
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