--May I help you？You seem to be having some problems.-- . thanks. I will manage
A. It's all right.
B. No problem
C. ok
--Which one of these do you want?--Either will be ok.
A. I'm sure
B. Go ahead.
C. I don't mind.
-The English Speech Contest has been cancelled.--Oh，no!
A. It's OK
B. what a pity！
C. It's pretty good.
--Have you paid? What's my share of the bill?-- . It doesn't take much money.
A. It's my share.
B. Don' worry about it.
C. It's none of your business.
微信支付 
支付宝支付