a dog
They're a dog's trainers.
my friend
They're my friend's bikes.
John
It's John's panda.
Lucy
It's Lucy's skateboard.
Dũng
They're Dũng's sandwiches.
Trâm Anh
It's Trâm Anh's comic.
Australia
They're Australia's giraffes.
Phúc
They're Phúc's roller skates.
Trung
It's Trung's crocodile.
Khiêm
It's Khiêm's watch.
Sam
It's Sam's kangaroo.