—President Obama has never been to Beijing, ______ he? — He visited the Great Wall on the afternoon of November 18th,2011.

---Amy had nothing for breakfast, _________ she?---_______. She had some bread and milk.

—He has never watched The Voice of China,       ?—Yes, he has. It’s so hot all over China.

Please turn down the TV,       you?

---He’s already back to Australia,___________?---________, he is on a visit to Shanghai.