单项选择题
A.another pair of shoes. B.nothing serious. C.easy does it. D.a piece of cake.
A.My pleasure. B.You are very kind. C.It's very kind of you. D.A piece of cake.
A.These coins are for you, thank you. B.Here's your change, thanks. C.Can you pay the bill, now D.This is the money back to you, thanks.