单选题 It would be worth trying ______ you should not get immediate success.
  • A. as if
  • B. whether
  • C. even though
  • D. unless


【正确答案】 C
【答案解析】even though意为“虽然”，引导让步状语从句。as if意为“好像”，whether意为“是否”，unless意为“除非”均不符合语境。