单选题 If tulip bulbs(郁金香鳞茎) are planted (in the fall), they (could have been) expected (to bloom) the (following) spring.
  • A. in the fall
  • B. could have been
  • C. to bloom
  • D. following


【正确答案】 B
【答案解析】将could have been改为will be。If引导的条件从句通常使用一般现在时代替将来时，而主句则使用一般将来时。该句为真实条件句，大意是“如果今年秋天种上郁金香鳞茎，明年春天它们大概会开花的”。