Name one of the two countries who were willing to go to the war with france to louis regain his power?

Is this a correct way to say 'some french foods i like are macaroons and crepes.'? quelques français de la nourriture j'aime sont macarons et crêpes. should francais be capitalized.

3. why is it important for a firefighter to know another language?

In this sentence should the 'de' be 'du'? "non, je ne fais pas de sport."