Urgent question about Reported Speech

[sikwai]

My language teacher told us that we should not change "this" and "these" to "the" in using reported speech, only change "this" to "that" and "these" to "those".
But another teacher told us, no matter the direct speech use "this" , "that" , "these" or "those", we can change it to "the" when using reported speech.

I want to know, which method is correct and why, thanks

[Soup]

I guess it could depend on the context. It works here, though:


Max: "Could you give me this book, please?"
Sam: "What did Max say?"
Pat: "Max asked you if you could give him this/that/the book."