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    Don't be afraid of asking for information ________ it is needed.

    1. A.
      when
    2. B.
      after
    3. C.
      although
    4. D.
      unless
    			
    


			
    

		
    
		
		
	
    
		
    
			
    
				
    
				A
    解析：
    when當……的時候；
    after在……之后；
    although雖然；
    unless除非……。根據(jù)題意選A“在需要的時候不要害怕問問題”。				
    
							
    
			
    
			
    
			
			
    
		
    
	
    

		
    

		





			
    
		
    
		
				
    
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