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          It’s very hard ___________the swimming pool.
          A．to swim acrossB．to swim cross C．swim acrossD．swim cross
          			
          


			
          

		
          
		
		
	
          
		
          
			
          
				
          
				
          A
          本題考查非謂語動詞。It’s + adj + to do sth. across是介詞，而cross是動詞。句意：游過游泳池是非常困難的。
          				
          
							
          
			
          
			
          
			
			
          
		
          
	
          

		
          

		





			
          
		
          
		
				
          
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