单选题 As the plane was getting ready to take off, we all ______ our seat belt.
  • A. tied
  • B. locked
  • C. fastened
  • D. closed


【正确答案】 C
【答案解析】[考点] 考查动词词义辨析。
tie意为“拴上”；lock意为“锁上”；fasten意为“系上，扣牢”；close意为“关上”。坐在飞机上应当系上安全带，因此选C。