Hi i upload a context to my lessons. how do i get a sound to this file if in original there is no sound ? is there any way to here the text in English?

Hi! Text-to-speech is available for individual words and phrases, though not for entire lessons.

You can listen to the text-to-speech by clicking on a word (yellow or blue) and clicking the text-to-speech icon that appears next to the term. Hope this helps!