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				 There is a new problem involved in the popularity of private cars        road conditions need       .  A. that-to be improved       B. which-to be improved  C. where-improving         D. when-improving			【查看更多】
			


		
           
          


		
          
		
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          There is a new problem involved in the popularity of private cars_______ road conditions need to be improved

          1. A.
            that
          2. B.
            which
          3. C.
            where
          4. D.
            when
          

			
          
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          There is a new problem involved in the popularity of private cars_______ road conditions need to be improved.
            
          A.that                   B.which                C.where                D.when
          

			
          
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          There is a new problem involved in the popularity of private cars ____________ road conditions need ____________. 
            
          A. that; to be improved          B. which; to be improved   
            
          C. where; improving              D. when; improving 
          

			
          
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          There is a new problem involved in the popularity of private cars ____________ road conditions need ____________. 
            
            A. that; to be improved B. which; to be improved   C. where; improving D. when; improving 
          

			
          
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          There is a new problem involved in the popularity of private cars _______ road conditions need _______. 
            
            A. that; to be improved B. which; to be improved   C. where; improving D. when; improving 
          

			
          
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