My French textbook says the first "e" in "quatre livres" must be pronounced because of the following "l". It also says it will not be pronounced in "quatre étudiants". Similarly, in another place it says the first "e" in "appartement" must be pronounced, for exactly the same reason: to avoid having three consonants in a row. I was wondering if the second "e" in "il ne parle pas" would be necessary to pronounce for the same reason? I'm guessing it would not be pronounced in "ils parlent espangol", which would be pronounced "il par lespangol". Am I correct? Could same natives comment?