单项选择题
（）to have kept you waiting so long. Oh, never mind. After all, you are here.
A.I am happy B.It's a pleasure C.I am sorry D.I am welcome
单项选择题 （）of them thinks that is a good idea
单项选择题 （）her and then try to copy what she does.
单项选择题 （）fashion differs from country to country may reflect the cultural differences from one aspect
