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I don’t know whether he is still _____ in collecting coins. He used to be, but that was several years ago.
A、interested
B、interesting
C、interest
D、disinterested
【正确答案】：A
【题目解析】：我不知道他是否还对收集古币感兴趣。他过去是这样的，但这是几年前了。短语be interested in doing… 对…感兴趣。