微信刷题,考证常用
  • 试题题型【单项选择题】
试题内容
It is ______ interesting picture and it is also ______ useful one.
  • A. a, a
  • B. an, an
  • C. an, a
  • D. a, an
  • 参考答案:C
  • 解题思路:interesting是元音因素用an;useful是辅音因素开头用a.
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