French language Q&A Forum

Is there a lesson which covers this case of using an adverb "bien" instead of an adjective "bonne" ?  

This is not a big discrepancy at all, but shouldn't part one be on the lesson list before part two? As it is now, part two is listed first & part one second. 

J'ai besoin de supplementaire information sur l'usage de "en tant que". Remercie de votre assistance.

Why is there a "DE" here? Is the expression "fait de qch"?

Is the hyphen with 41 correct here? On the page Expressing numbers 70 to 999 in French it says no hyphen for 41?

I do most of my studing at work because when I go to the same email at home and click on the lessons it does not reconize me as a member Thank you

Can one also say 'dont les Celtes' in this situation?

I had not come across this verb before, and thought it would behave like an ir verb wth a past participle of acquéri. Could you tell me which other verbs follow the same pattern  as acquérir? Or is it completely irregular?