_____ worries me the way he keeps changing his mind.
| A．This | B．That | C．What | D．It |
16. _______ the punishment was unjust, he accepted it without complaint.
| A．So long as | B．Even though | C．Since | D．While |
15. He is better than _______ I last visited him.
| A．when | B．that | C．how | D．which |
14. Why do you want a new job ____ you’ve got such a good one already?
| A．that | B．where | C．which | D．when |
13. Don’t play by the river _______ you fall in and drown!
| A．in case | B．so that | C．in order that | D．when |
12. I thought she was the very girl that I should marry _______ I met her.
| A．first time | B．for the first time | C．the first time | D．by the first time |