green

blue

yellow

red

green

blue

yellow

red

It's

Its

It' is

they're

màu xanh dương

màu vàng

màu đỏ

màu hồng

It's a green pen.

It's a yellow pen.

It's a red pen.

It's a blue pen.

It's a book.

It's big.

It's a bird.

It's a bag.