She’s never spent much money on her own clothes, ______ she?

---She’s never been to Shanghai, ____________? . --- ___________. But how she wishes to go there again.

—______are you staying there?—Just for two days. 

—Tom, you never told me why you were late for school again,_____ you?        —____. But maybe you forgot it, sir.                           

________is dangerous for us to swim in the river alone.