難度:★   考點:定語從句
	
	  1. - What are you looking for ?
	
	  - I'm looking for the pen________my father gave me last week.
	
	  A- who B. which C, whose D. whom
	
	
	  2_ --- Do you know the girl_____ is helping the old woman.
	
	  -Oh, that's my sister,
	
	  A. whom      B. whose       C. who        D. where
	
	  3. Steve Jobs is one of the persons          founded Apple Computer Company. His death  marked the end of an era (時代).
	
	  A. who            B. whom                C. which            D. /
        
