Question

_________ climber gets to the top first will get a $5,000 prize

1. A.
   No matter when
2. B.
   Whichever
3. C.
   No matter which
4. D.
   Whenever

Answer 1

B
考查名词性从句。Whichever无论哪一个，No matter which不可引导名词性从句，选B。