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          The teacher, with 6 girls and 8 boys of her class, ________ visiting a museum when the earthquake struck. 
            
          A. was           B. were  C. had been      D. would be 
          			
          


			
          

		
          
		
		
	
          
		
          
			
          
				
          
				
          A
             
          解析:
               
          由when the earthquake struck可知，要用一般過去時(shí)，排除C和D；又因?yàn)橹髡Z是單數(shù)the teacher，所以只有A正確。
          				
          
							
          
			
          
			
          
			
			
          
		
          
	
          

		
          

		





			
          
		
          
		
				
          
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