--- Jenny, ________do you visit your grandparents?--- Twice a month.

— _______ do you think of the basketball match?— It's perfect. It's more exciting than _______ match that I have ever watched.

— I telephoned him twice and I couldn’t get through to him.  —The line might have been out of order, _______?

—The spacecraft has never been to the moon, ________ ? —Certainly.

-- Are these pens ?  ---Yes, ______.