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				24．More  and more have realized we won't have cleaner water to drink unless something   soon．  A．was  done      B．will  be done     C．to be  done     D．is done			【查看更多】
			


		
           
          


		
          
		
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          More and more people have realized that we won’t have
cleaner water to drink unless something _______soon.
          


          A. is done   B. was done   C. will
be done   D. to be done
          


           
          

			
          
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          More and more people have realized we won’t have cleaner water to drink unless something ________ soon．

          1. A.
            was done
          2. B.
            will be done
          3. C.
            to be done
          4. D.
            is done
          

			
          
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          More and more people have realized we won't have cleaner water to drink unless something ______ 
          soon.
          

          [     ]
          A. was done      
          B. will be done     
          C. to be done     
          D. is done
          

			
          
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          More and more people have realized we won't have cleaner water to drink unless something ______ soon.
          

          [     ]
          A. was done 
          B. will be done 
          C. to be done 
          D. is done 
          

			
          
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          More and more people have realized we won’t have cleaner water to drink unless something______ soon．
            
          A．is done          B．will be done          C．to be done            D．was done
          

			
          
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