_陕西成考网

51. (    ) 

13. I (   ) have handed in the report, but I (   ) not find the materials. 

• A、should; would
  
  

• B、should; could
  
  

• C、might; would
  
  

• D、would; could
  
  

45. When you sit with your face towards the window (   ).

• A、your shadow falls on your book
  
  

• B、your book is in a shadow
  
  

• C、the light is still dark
  
  

• D、the light is on your page