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          If it ________ for the heavy rain then, we would have arrived here ahead of time.

          1. A.
            shouldn’t be
          2. B.
            weren’t
          3. C.
            had not been
          4. D.
            be not
          			
          


			
          

		
          
		
		
	
          
		
          
			
          
				
          
				C
          解析：
          考察虛擬語氣，根據(jù)題意，如果那時不下這么大的雨，我們會提前到達這里。可知從句假設(shè)的內(nèi)容應(yīng)該在過去已經(jīng)發(fā)生，故從句用過去完成時態(tài)，選C。在表示過去的虛擬語氣結(jié)構(gòu)為從句had +動詞過去分詞 主句would / should / might / could have + 動詞過去分詞。				
          
							
          
			
          
			
          
			
			
          
		
          
	
          

		
          

		





			
          
		
          
		
				
          
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