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				 It is pretty well understood       the earth goes around the sun.  A. that       B. when      C. what       D. how			【查看更多】
			


		
           
          


		
          
		
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           It is pretty well understood _____ the earth goes around the sun.
            
          A. that                                  B. when                               C. what                                D. how
          

			
          
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          It is pretty well understood _____ the earth goes around the sun.
            
          A. that                  B. when                      C. what                 D. how
              
           
          

			
          
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