Sure! Here is the correct order of the sentences to form a paragraph:

1. Sentence G: A few years ago I started shopping online for books and clothes, but not for shoes - you can't try them on.
2. Sentence A: I usually shop at the market. It's friendly, but you have to pay with cash there. You can pay by credit card at the shopping mall.
3. Sentence F: I want to start selling things online soon!
4. Sentence E: For presents, I sometimes go to the department stores. A few years ago I started shopping online for books and clothes, but not for shoes - you can't try them on.
5. Sentence C: I usually shop at the market. It's friendly, but you have to pay with cash there. You can pay by credit card at the shopping mall.
6. Sentence D: I usually shop at the market. It's friendly, but you have to pay with cash there. You can pay by credit card at the shopping mall.
7. Sentence B: I usually shop at the market. It's friendly, but you have to pay with cash there. You can pay by credit card at the shopping mall.
8. Sentence H: For presents, I sometimes go to the department stores. A few years ago I started shopping online for books and clothes, but not for shoes - you can't try them on.
9. Sentence I: I want to start selling things online soon!