题目内容
There________ a lot of rubbish there in the past. But now it has turned into a clean place.
A. used to be B. used to have
C. was used to being D. was used to having
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题目内容
There________ a lot of rubbish there in the past. But now it has turned into a clean place.
A. used to be B. used to have
C. was used to being D. was used to having