题目内容
I’m surprised to see you are a chain smoker. You _______ , I remember.
A.didn’t use to be B.mustn’t C.used not to D.didn’t have to
A
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题目内容
I’m surprised to see you are a chain smoker. You _______ , I remember.
A.didn’t use to be B.mustn’t C.used not to D.didn’t have to
A