( ) ---Does the duck have any feet? ---_____________. A. Yes, it does. B. No, it doesn’t. C. Sorry, I don’t know.
--“Hello! 34776855” --“Hello! ________________”
Where ________________ the students?
These are our books. Please look after ________________.
—________________ on the desk? —Yes, it is.
Are these your books ________________ his books?