Answer Key

Exercise

You have already visited this section on 2015-02-23 at 5:35.

Fill in a or an...
  1.  [a] happy girl
  2.  [an] H-bomb
  3.  [an] unidentified flying object
  4.  [an] honorable man
  5.  [an] elephant
  6.  [a] unit of work
  7.  [a] eucalyptus tree
  8.  [a] UNESCO worker
  9.  [an] unreasonable decision
  10.  [a] universal problem