French language Q&A Forum

In this lesson, Expressing Numbers from 70 to 999, the paragraph which begins "Note: Before the 1990 Spelling Reform, numbers including et as well as numbers higher than 100 didn’t include the hyphen...", has two examples, "deux cent" and "deux-cent", neither of which have "cent" written as "cents". They should have an "s" at the end shouldn't they, since they are not followed by another number? 

I understand why we use the definite article for one and possessive adjective for the other buy why are they both singular?

Hello, I can’t find any lessons about “ce dont” on kwiziq though I’ve seen it being used by french people many times. So I look it up on lawless french and find a comparison between “ce dont” and “dont” (https://www.lawlessfrench.com/grammar/indefinite-relative-pronouns-ce-dont-quoi/) and I still can’t tell the difference between the two. Please help. Thank you so much!

Le de voir en cinq phrases exprimer ce qu'il faut faire

Je manque toujours les point d'exclamation.  Il y a un règlement sur le sujet? Comment peut-on savoir pendant la dictée, si un point d'exclamation est nécessaire? On peut entendre un ton dans la voix?

Quand La Premiere Guerre Mondial a-t-elle commence.  This seems an awkward construction, but perhaps not.  Could one say: La premiere Guerre Mondial quand a-t-elle commence?  Please excuse the lack of punctuation. 

I was looking at the Lawless French article on inversion and saw that 'ainsi' may be followed by inverted word order. Does that mean that, as an alternative to 'Ainsi ma mère m'a raconté que', you could write 'Ainsi m'a raconté ma mère que...' ?

What is the mood and tense of Qui l'eût cru?

qui est pierrot?

What does the "en" in this clause express?  Thanks.