Is it the right sentence The book is so interesting that I could not stop reading?

The sentence "The book is so interesting that I could not stop reading" is grammatically correct, but it could be improved for clarity and flow.

Here are a few ways to rephrase it:

* "The book was so interesting that I couldn't put it down." This is a more common and natural way to express the idea.

* "I found the book so interesting that I couldn't stop reading." This emphasizes the speaker's personal opinion.

* "The book was so captivating that I read it in one sitting." This adds more detail and paints a vivid picture.

Ultimately, the best way to phrase the sentence depends on the context and the desired effect.