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4. (单选题) —Can you remember this park? We _____ here.—Sure. But now I ______ in that swimming pool.( )(本题5.0分)
A、 are used to take a walk, am used to swim
B、 are used to taking a walk, am used to swimming
C、 used to take a walk, used to swim
D、 used to take a walk, am used to swimming

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出自：陇东学院-大学英语2(专升本)

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