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          Food safety is important. Rules _____ to stop people from food pollution.
          A．must makeB．must be made
          C．can makeD．can be made
          			
          


			
          

		
          
		
		
	
          
		
          
			
          
				
          
				
          B

          試題分析：句意：食品安全是重要的。制度必須制定來阻止人們污染食品。前句說道食品安全重要，因此必須制定制度，排除C和D；rules做主語應(yīng)用被動語態(tài)，故選B。
          				
          
							
          
			
          
			
          
			
			
          
		
          
	
          

		
          

		





			
          
		
          
		
				
          
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