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				 Ads sometimes help people learn more about new  products, but at other times ads   tell lies.  A.  must          B.  can          C.  need         D.  should			【查看更多】
			


		
           
          


		
          
		
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          Ads sometimes help people learn more about new products, but at other times ads _______ tell lies. 
          

          [     ]
          A. must 
          B. can 
          C. need 
          D. should 
          

			
          
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          Ads sometimes help people learn more about new products, but at other times ads    tell lies.
            
          A. must                 B. can                   C. need                 D. should   
          

			
          
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          Ads sometimes help people learn more about new products, but at other times ads ________ tell lies．
          

          

          [　　]
          

          A．must
          

          

          B．can
          

          

          C．need
          

          

          D．should
          

          

          

			
          
				查看答案和解析>>
			
          
		
          
				
          
									
          Ads sometimes help people learn more about new products，but at other times ads ________ tell lies. 
            
          A. can               B. must             C. need                 D. would
          

			
          
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