Every means _____ prevent the water from _____.
| A．are used to; polluting | B．will be used to; polluting |
| C．is used to; polluted | D．is used to; being polluted |
一I enjoyed a very good holiday in Shuangqiao. 
－__________.
| A．I am glad to hear that | B．It’s my pleasure |
| C．Congratulations | D．That’s very nice of you |
My new shirt doesn’t fit me well, so I’ll take it back to the store______sold it.
| A．where | B．when | C．that | D．in which |
. — You must obey every word of mine!
— _____ I don’t?
| A．How if | B．What if | C．Even if | D．Only if |
16. The river,______the bank are covered with trees, is very long.
| A．whose | B．which | C．of which | D．which of |
The way she dealt with the problem is quite different _______ her parents were used to.
| A．from which | B．in what | C．in which | D．from what |