---I have been to Changsha . --- . I think it's nice .
----Would you mind my sitting here ?----_______. The seat is for Mr. Green.
----Do you know _______ tomorrow? I have something to discuss with him.-----Sorry, I don’t know. When he comes back, I’ll tell you.
— How do you like the program hosted by Zhu Dan and Hua Shao?—Exciting, ______ one piece of the background music wasn’t played well.
----Where are the Greens?-----Well, they _____ to England. They have been there for nearly a week.
---What did you ____ just now?--I _____ you if you could follow me.