--- Liu Tao has never read the book The Adventure of Tom Sawyer , _________ he?--- _________. He told me it's very interesting. He'd like to read it again.

 ---Tom had better stay at home, _____ he?----Yes, but he’d better ____ turn the TV on.

E - mail is very popular today. People hardly post letters, _____?

—Judy’s never been late for school, ________ she?—________. She is always the first to get to school every morning.

— You didn’t use to play tennis, ______? — Yes. I still like playing tennis now.