My hobby is collage pictures.

collage : nghệ thuật cắt dán (ảnh, giấy, que diêm... thành những hình nghệ thuật

Vì : sau hobby là động từ thêm đuôi ing

VD : My hobby is collect bottles.

Her hobby is watching TV

VB :

Hello everyone, my name is Le. I'm twelve years old. Today, I will tell you about my hobby. My hooby is collage pictures . I started this hobby for 5 years. My sister shares this hobby with me. To do this hobby, you have to have glue, matchsticks, papers, v.v, after that, you cut it and paste it on a large paper, on the wall and on every things you like. I think this hobby is very fun. I will continue this hobby in the future and share it to everyone.