It's me (если тут ты хочешь сказать "это я", и также возможен вариант It's mine — если ты хочешь сказать "это мое", то есть зависит от контекста)
There's a computer on the desk.
5. This is my friend Judy. Look at her.
Reading Comprehension:
1. His favourite room is his bedroom.
2. There are posters of Dan's favourite singers on the walls.
3. The walls are brown, grey, and white.
4. His desk is under the window.
5. His cat is always under his bed.