单选题 The company has announced that it will {{U}}undertake{{/U}} an investigation into this accident.
  • A. enter upon
  • B. put off
  • C. turn in
  • D. set aside
【正确答案】 A
【答案解析】undertake：承担，着手，承诺，保证；enter upon：着手，开始；put off：推测，延期；turn in：上交，自首；set aside：保留，扔掉。