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I ______ going to bed at 10 every night ,which is good for my health.A used to B be used to 求原因

题目详情
I ______ going to bed at 10 every night ,which is good for my health.A used to B be used to 求原因
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答案和解析
Used to do sth故去常常做...
be used to doing sth 习惯做某事
选B