―He’s never advised to achieve a balance between his job and hobbies, ________? ―Yes. His parents and teachers often offer him some advice.

---Mom, there is little milk,______?---No,there isn’t. Could you please go and buy some?

 His sister's never been to the Summer Palace, _______?

E-mail is very popular today.  People seldom write letters now,_______?

— He hasn’t watched the movie “ So Young”, has he?— ________. He told me it’s very moving and interesting, he’d like to watch it again.