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          The number of books in the bookshop is about 10,000 and a number of them 
               about science.
          A．isB．wasC．a(chǎn)reD．Were
          			
          


			
          

		
          
		
		
	
          
		
          
			
          
				
          
				
          C
          考查動詞的用法。依據(jù)第一句中的謂語動詞“is（一般現(xiàn)在時）”可推斷出第二句的時態(tài)也應是一般現(xiàn)在時，故保留A和C項；由短語“a number of...”的謂語動詞是復數(shù)，故選C。
          				
          
							
          
			
          
			
          
			
			
          
		
          
	
          

		
          

		





			
          
		
          
		
				
          
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