单选题 You will be late ______ you leave immediately.
  • A. unless
  • B. until
  • C. if
  • D. or


【正确答案】 A
【答案解析】本题考查连词辨析。可转化为If you don't leave immediately，you will be late。B、D句意不对，且or表转折，A意为“除非”。句意为：除非你立即走，否则你就会迟到。