French language Q&A Forum

I am confused by this example: 

"I haven't left France for three years:" "Je n'ai pas quitté la France depuis trois ans."

The lesson says "we use PC because the negation indicates the action wasn't done during the entirety of that past period. BUT PC is used to express actions which were completed or finished in the past. 

This example shows it WAS NOT completed, so why PC and not imparfait??

Thank you. 

I’m confused about why the possessive of “Ils” in this lesson is “se“ rather than “ses“?

Is there a list someplace for French verbs that are always followed by à?

"Plonk" in english means an "ordinary, cheap, possibly inferior" wine. It does not mean bad wine. Does "la piquette" mean bad, or inferior, or both ??

Coucou!

I dont understand the recorded pronunciation in this phrase : Les plantes produisent l’oxygène. Why is the “ent” silent in produisent?  And why is the “l” silent in l’oxygène?

Merci pour votre aide 

I would like to know why the last phrase is in the present "c'est avec des larmes" when the rest of the text is in the past. I have seen the present used for obituaries, but on those occasions the present is used throughout the text, not just on one occasion. Est-ce qu'il y a quelqu'un qui peut m'expliquer?

My new school bag is blue and yellow….Mon nouveau cartable est jaune et bleu :

I wrote

Nous nous rencontrons

instead of 'nous nous rejoignons / nous nous retrouvons

is it fine?

merci