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

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

I don’t think the newly-directed film by Zhao Wei is as interesting as people say, _____?

—You were injured in the accident, weren't you ?—           , but look, I'm all right now.      

The book was written in _______ easy English _______ even primary school students could understand it.