一条英语题不会,请大家帮我回答一下

whose mouth is bigger, yours or his?
We have pet birds.His is more beautiful tham mine

Are these new shirts yours?(好像是)

1~~whose mouth is bigger, yours or his?
2~~We have pet birds.His bird is more beautiful than mine.

1.whose mouth is bigger, yours or his?
2.We have pet birds.His bird is more beautiful tham mine.

1.whose mouth is bigger, yours or his?
2.We have pet birds.His bird is more beautiful than mime.

1、whose mouth is bigger, yours or his
2、We have pet birds, his is more beautiful than mine.

1.Whose mouth is bigger, yours or hers?
2.We have pet birds. His bird is more beautiful than mine.