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				 The math  problem is very difficult. I don't think         could work it out.A. anybody      B. everybody      C. someone       D. nobody			【查看更多】
			


		
     
    


		
    
		
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    -- The math problem _________ is not difficult. 
    


    --- But after several tries , I have to give up _________
on it .
    


    A．it’s , working      B．itself , to work      C．itself ,
working      D．its , to work
    


     
    

			
    
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    The math problem is too difficult ,I can’t__________ .
    A．work out itB．work it out
    C．work them outD．put it out
    

			
    
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    The math problem is so hard. I really don’t know    
.
    


    A. how to do it  B. how to do C. what to do it D.
where to do it
    


     
    

			
    
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    The math problem is too difficult ,I can’t__________ .
    


    A．work out it                            B．work it out
    


    C．work them out                         D．put it out
    


     
    

			
    
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    The math problem is _______ difficult and _______ of them can work it out.
    A．too much; a fewB．much too; a fewC．too much; fewD．much too; few
    

			
    
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