1 I like your house.
2 Our house is smaller than theirs.
3 And their garden is bigger than ours, too.
4 My children are older than hers.
5 Who's talking to your sister?
6 This book isn't mine. Is it yours?
7 'Whose dictionary is this? Is it his?
8 'Who's going to the party tonight?' 'I'm not.'
9 'Whose dog is running round our garden?