Hi Iskander, You use "this" when the object is near you and "that" when the object is far from you in the moment of talking. Example: Teacher holds in her hands a book and asks : Who is THIS book? Teacher points to a book under a chair and asks: Who is THAT book? I hope it can be helpful. Best Regards!

"THIS" is a word for what is IN your hand, your lunch box. For example, "I have this apple (the apple in your hand) for my lunch". "THAT" is simply a word for something OVER THERE. It is something you could point to. For example, "I want THAT apple" (the one the table) because it looks fresher." I hope this helps

The difference between this and that is simple. You can use 'this' for something in nearby. For example I'm sitting on a chair, I like this chair. But 'that' is used when you talk about something more distant. In example again, I'm sitting on a ground and chair is like 5 meters distant. And you say: I like that chair.