into use in April. 2000, the hotline was meant for residents reporting water and heating supply breakdowns A. Put B. Putting C. Having put D. Being put 查看更多

 

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     into use in April 2000, the hotline was meant for residents reporting water and heating supply breakdowns.

       A.Put                     B.Putting                C.Having put           D.Being put

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___ into use in April 2000, the hotline was meant for residents reporting water and heating supply breakdowns.

A. Put       B. Putting     

C. Having put    D. Being put

 

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 ______ into use in April 2000, the hotline was meant for residents reporting water and heating supply breakdowns.

A. Put                  B. Putting          C. Having put           D. Being put

 

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______ into use in April 2000, the hotline was meant for residents reporting water and heating supply break downs.


  1. A.
    Put
  2. B.
    Putting
  3. C.
    Having put
  4. D.
    Being put

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___ into use in April 2000, the hotline was meant for residents   reporting water and heating supply
breakdowns.  
[     ]
A. Put        
B. Putting    
C. Having put    
D. Being put

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