Not relevant to this lesson but I listened to the audio and the final s on “le plus” was pronounced. Is there a rule or lesson on this?

Hi Johanna, 

As a rule of thumb,  when ‘plus’ has the positive meaning of ‘more’ , the final ‘s’ will be pronounced . There are some exceptions but that’s the general rule.

When it has the negative meaning of ‘no more’, ‘no longer‘ in ‘ne ...plus’  it won’t be pronounced.

I don’t believe there is a lesson on this at the moment ....