You look tired. You’d better ______ up late.

－ I’ve bought a box of chocolate for our daughter.－ Oh, how good a dad! But she doesn’t like sweet things. _______ know that?

---Few young people in China know about Lady Gaga, _______? ---_______, she is quite famous here in China.

—You haven’t been to the USA, have you?—      But how I wish to go there again!

— My cousin often has nothing for breakfast, ______ she?— ______. Because she often gets up late and is afraid of being late for school.