Question tags - Positive

1 Your mobile isn't new, ?
2 The test isn't difficult, ?
3 Peter isn't at home, ?
4 Sue isn't in her room, ?
5 We aren't late, ?
6 Mr and Mrs Brown aren't in the taxi, ?
7 The prize isn't good, ?
8 The bag isn't expensive, ?
9 You aren't in London, are ?
10 The football game isn't this weekend, ?