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Apr 24th, 2017
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  1. 1. Can you descrive how ....?
  2.  
  3. a. does RAM work?
  4.  
  5. b. RAM works?
  6.  
  7. c. is RAM working?
  8.  
  9. d. has RAM benn working?
  10.  
  11. 2. Pete ..... at least eight beeers since we came here.
  12.  
  13. a. drank
  14.  
  15. b. has drunk
  16.  
  17. c. drunk
  18.  
  19. d. has been drinking.
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