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				 Your mother looks ill these days. You’d better       a doctor.    A. call on     B. call in      C. call for      D. call at			【查看更多】
			


		
           
          


		
          
		
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          Your mother looks ill these days. You’d better _____ a doctor.
             A. call on   B. call in    C. call for   D. call at
           
           
          

			
          
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