单项选择题
A.It is real B.It sure is C.It is certain D.It must be
A.You' may stay here and wait for your right B.You can sit over there and wait for your turn C.You may stand in line here and wait for your arrangement D.You may sit here and wait for your order
A.Yes, please B.No, thanks C.It's very kind of you D.I'm glad you can think of it