Question tags

Question tags are often used in English to agree or disagree. 

Positive sentence - negative question tag: 

You are Italian, aren't you? 

You have got a ball, haven't you?

She plays football, doesn't she?

They study French, don't they?

We wrote a letter, didn't we?

Negative sentence - positive question tag: 

She isn't Mary, is she? 

She hasn't got a PC, has she?

They don't play volleyball, do they?

He doesn't study English, does he?

She spoke to the teacher, didn't she?

Here you find some exercises to practice and review question tags.

http://www.englisch-hilfen.de/en/exercises/questions/question_tags.htm
http://www.englisch-hilfen.de/en/exercises/questions/question_tags3.htm
http://www.englishexercises.org/makeagame/viewgame.asp?id=2520