French language Q&A Forum

I’ve written "Peut-être pourrais-je demander" instead of "Peut-être que je pourrais demander". Are both equal or is there a difference in formality?

So I wanted to test my proficiency at the A0 level, so I chose the Kwiz A0 option from my focus tab. In there, there was a question about Louvre, where I put "C'est quoi" as the answer, and it got marked incorrect. The answer was supposed to be "Qu'est-ce que c'est". But coming back to this lesson, I couldn't figure out the difference between either of the phrases, or any difference regarding when and where they should be used. So I'm just a bit confused right now. Would like some help.

I thought adverbs can only modify a verb, an adjective, or another adverb.

How come the adverb 'bientôt' is placed before the nound 'les vacances"?

The bolding/unbolding doesn't always make this very clear.  So, please can someone clarify the rule on thousands in French?