—The country has already sent up an unmanned spacecraft to the moon.—Yes. Chang’e I to the moon last October.
---I hope all of you have a nice weekend. ---_______.
---Don’t forget to give me best wishes to you mother.---___________.
---Could you tell me _____? I must find him.---Sorry, I have no idea. But he was here just now.
---When shall we meet again next week? ---_____ day is possible.
---There is lots of _____ in the street. Be careful when you cross the street.---OK, I will. Thank you.