My uncle hasn't been able to quit smoking, but at least he has A. cut out B. cut down C. c

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A. cut out
(答案→)B. cut down
C. cut up
D. cut off
解析：根据句意“叔叔戒不了烟，但是至少已经少吸了”选择cut down(减少)。cut out切断，删去，停止，关掉；cut up切碎；抨击；cut off 切断，中断，使死亡。
【考点定位】考查动词短语