Few people knew how to use the Internet in the past,_____?

He’s never late for class, ___________he?

 ---Li hasn’t passed the driving test, has he?        ---     , though he tried his best.                           

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

---She didn’t come to school yesterday, did she ? --- ______. Though she was not feeling very well.