单项选择题
---- I do apologize for knocking you down. ----（）
A.No, I’m perfectly all right. B.You’re all right. C.Don’t worry about it. D.Not at all. Thank you
单项选择题 The world's supplies of copper（）
单项选择题 — Would you mind closing the window? —（）.
单项选择题 He is a popular movie star. His popularity（）in the high attendance at all his movies.
