_________ climber gets to the top first will get a $5,000 prize.
| A．No matter when | B．Whichever | C．No matter which | D．Whenever |
I find the story really worth ______.
| A．reading | B．to read | C．being read | D．to be read |
I will never forget the day _____ we spend together.
| A．when | B．on that | C．which | D．While |
I will never forget the day _____ we worked together in London.
| A．when | B．on that | C．which | D．while |
________ your letter, I would have started off two days ago.
| A．If I received | B．Should I receive |
| C．If I could have received | D．Had I received |
_______ you’ve got a chance, you might as well make full use of it.
| A．Even though | B．In case | C． Now that | D．Only if |