-----_______ do you spell “tree”?  ----T—R—E---E

---         does she do on weekends?--- She usually helps her mother.

It doesn’t matter if they want to come to your party, ______?

He knows so much about the story. He must have read the book, _______?

 —          do you surf on the Internet?—Once every week. I watch some latest news and chat with my pals there.