—I would like you to talk about the Great Wall.—I’m sorry, but ________ Jack ________ I have been there.
We should keep the classroomand tidy.
I won’t make such a silly mistake again. I’ll benext time.
Sir, would you mind nothere, please?
Miss Green isn’t in the office. Sheto the library.
I didn’t hear your call because Ito music at that time.