Hi Sara,

It would be "Ils partent de leur travail à 19h" or "Ils quittent leur travail à 19 h" .

For 'to leave something' you will normally use the transitive verb 'quitter'

e.g.

Nous quittons le bureau à 17 h tous les jours = We leave the office at 5 pm every day

Il a quitté sa femme = He has left his wife

Elle a quitté son pays à l'âge de 18 ans = She left her country at the age of 18

If you simply want to say 'to leave' you will use the intransitive verb 'partir'-

Je suis partie très tard ce matin = I left very late this morning 

Partons vite! = Let's leave quickly!

You can use 'partir de' in a transitive way to by adding the de + place

Je suis partie de chez moi à l'âge de 16 ans = I left home at 16

The verb 'laisser' is often to 'leave behind'-

Laisse tomber! = Let it go!

J'ai laissé mon sac dans le train = I left my bag in the train

Hope this helps!

 

Hi Sara,

I have a look at the lesson and it says that -

Quitter is the only verb you can use to express to leave something for good

It doesn’t say you cannot use it to mean to leave something like your place of work.

In grammatical terms , partir is intransitive and laisser/quitter are transitive which means the latter will have a direct object, so you cannot say -

Partir le travail 

It has to be - quitter le travail ...

Laisser I always think as to let or to leave behind.

Hope this helps!