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高中英语
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单选题
1. _____ into use in April 2000, the hotline was meant for the residents reporting water and heating supply breakdowns.
A .
Put
B .
Putting
C .
Having put
D .
Being put
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使用过本题的试卷
上外版(2020)高中英语必修二Unit 3 Food 单元过关检测