She’s never been to Sanya,______?

--________ is it from our school to Bridge School? --- Only 15 ___________. You can use my bicycle.

—     do you surf the Internet?—Once a week.

He’s still not understood by his close friend although he has said sorry to him, _________?

—She’s already back to Nantong, ______? —______. She is on a visit to Tokyo.