Ответ:

A: This is a great photo.

B: I know. It's from my uncle's wedding.

A: Your dress looks really beautiful.

B: Thanks. My mum's friend made it for me. She made all the girls' dresses in the picture.

A: Who are the other girls?

B: They're my sister's children, Alana and Susie.

A: And is that their dad?

B: No, that's my aunt's husband, Alex. This man here is the children's dad. His name's Julio and he's from Mexico.

Объяснение:

nephew — nephew's

bus (оканчивается на s) — bus'