French language Q&A Forum

Why is it  'le musée du Louvre' and ' le musée d'Orsay'

If I follow the logic for  le musée du Louvre, then ' le musée d'Orsay' should be ' le musée de l'Orsay'

why can you say:le lait,if milk isnt countable

Faut-il qu’on utilise le subjonctif après « alors que »?

Shouldn't "joué" be "jouée," as the subject is elle?

Would be good to have further explanation of when you use the present (which we all know is 'normal' with depuis) and when you use the the passé composé. I realise it's quite complicated, but using three examples with two different tenses, without acknowledgement, is rather confusing. (Ah, just read the existing comments. See I'm not the first to feel this!)