单项选择题
A: Haven’’t we met somewhere B: No, I don’’t think so. A: Aren’’t you Kevin Grant B: No, my name’’s Greg. Greg Brown. A:_______
A．I’ve had enough, thank you.
B．I’m sorry, but I’ve got nothing to let.
C．Oh, I’m sorry. I was positive we’d met before.
D．I think otherwise.