Bonjour !
Answer:
Je pense que Juliette Binoche est <em>"la meilleure"</em> actrice du monde.
I feel like it’s either cleaning product or makeup but i’m not too sure just my gut
I'm not sure if there is a proper way because there are many ways to do it, but I would say "comment ça va" because that's how people non- natives are usually taught it
Yes you can simply talk and talk with reocurring numbers
