---What do you want to be in the future?
         ---I want to be _____ scientist. I think it is _____ exciting job.

  • A a; a
  • B a; an
  • C the; an
  • D a; the
参考答案: B
解题思路: scientist不是元音因素要用a修饰;exciting元音因素开头,用an修饰。