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          The number of the workers here ___ 200. Half of them ____under 30 years old.
          A．a(chǎn)re, areB．is, areC．a(chǎn)re, isD．is, is
          			
          


			
          

		
          
		
		
	
          
		
          
			
          
				
          
				
          B

          試題分析：句意為：這里工人的數(shù)量是200人，一半在30歲以下。the number of+名詞復數(shù)，表示“---的數(shù)量”，謂語動詞應用第三人稱單數(shù)形式。結合語境，“ half of them”指的是一半的工人，表示多數(shù)。根據(jù)主謂一致原則可知應選B。
          				
          
							
          
			
          
			
          
			
			
          
		
          
	
          

		
          

		





			
          
		
          
		
				
          
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