问题
选择题
——I haven't got a camera.
——I think you should buy_______. It's useful for you.
A．one
B．this
C．that
D．it
答案
答案：A
one代指上文中提到的事物之中不确定的一个，而BCD都指的是确切的一个，故选A
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——I haven't got a camera.
——I think you should buy_______. It's useful for you.
A．one
B．this
C．that
D．it
答案：A
one代指上文中提到的事物之中不确定的一个，而BCD都指的是确切的一个，故选A