I don’t think that the necklace is made of diamond, ________?

---_____ does she chat with friends on the Internet?--- Once a week.

—Your father likes chicken. _______ your mother _______ it, too?—Yes, she _______. She also likes meat.

I told you that you shouldn't waste your time playing the computer games,_____________?

--______ man is your English teacher?-- The man in black.