— How many students are going to the Great Wall?

— ____.

— Don’t forget to take the message to my teacher.

— ____.

— How about a game of chess?

— ____

He left home in 1980 and has never come back ____.

— I’d like to go to the cinema with you, Dad.

— Sorry, my darling, but the film is ____ for adults only.

 — ＄1，500， but that's my last offer.

— OK. It's a ____.

— We were talking about the new play ____， remember?

— Yes， I enjoyed it very much.

— You keep on coughing. What's the matter?

— Oh， I've got a cold. Nothing serious， ____.

— How's everything going? 

— ____.     

— Hello， may I have an appointment with the doctor?

— ____