单选题 We are disappointed to find out that he has made a fatal mistake.
  • A. crucial
  • B. foolish
  • C. stupid
  • D. big


【正确答案】 A
【答案解析】本题是派生词的考查。Fate+al=fatal命运的，致命的；crucial至关重要的；fool+ish=foolish愚蠢的；important重要的。