题目内容
Bill ______ a couch potato and now he has a healthy lifestyle.
A. is B. used to be
C. is used to being D. is used to be
【答案】
B
【解析】
试题分析：考查词组辨析：used to do过去常常，be used to do被用来，be used to doing习惯于做…，句意：比尔过去是沙发土豆，现在他有了健康的生活方式。选B。
考点：考查词组辨析
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