Underline the right word to complete the sentences/Подчеркнуть нужное слово для завершения предложения

Underline the right word to complete the sentences/Подчеркнуть нужное слово для завершения предложения 1.This is my/mine dog. 2.Is this pen your/yours? 3.That's my sister. Her/hers name is Olya 4.That house is our/ours. 5.Is that your/yours car? 6. Are these their/theirs sandwiches? 7. That's ours/our teacher, Mr Kapitonov. 8. That book isn't Bill's, it's mine/my.