What about a drink?________
A. Good idea
B. Help yourself
C. Go ahead, please.
D. Me.too
查看答案
Every means ________prevent the water from______.
A. are used to, polluting
B. get used to, polluting
C. is used to, polluted
D. is used to, being polluted
This room ought _____ before five o'clock.
A. to clean
B. to be cleaned
C. clean
D. be cleaned
He smokes too much.---Well, he used to smoke more than he ______ now.
A. did
B. does
C. could
D. has
Do you mind if I smoke here?_________
A. No, please don't.
B. Yes, please do.
C. No ,I don't.
D. yes, I don't.
微信支付 
支付宝支付