—Jack, you water the flower today, ___?— But, dad, I watered it yesterday.

The girl carrying a dictionary, come in first, ______? 

— _______ classes do you have every weekday?—Seven classes. 

_______ oranges do you want and ______milk would you like?

— ______ didn’t Sally play the violin at the concert last night?—She said that her hand hurt, but that was only an excuse. I saw her play tennis just now.