French language Q&A Forum

in this example, two questions:

Ce sont les meilleures vacances qu'elle ait passées!

1. why "ce" instead of "ces", if vacances is plural?

2. why pasées instead of passée, if the noun is singular and avoir doesn't match in number?

Please confirm are these Adverbial Affirmative Imperatives correct? 

- Donne-lui-en! [Give him some!]

- Emmenez-m’y!  [Take me there!]

- Emmenez-nous-y! [Take us there!]

- Amuse-t’y! / Amusez-t'y! [Have fun there!]

How do know when to use these before the season? 

J'habite à Alexandrie en Egypte. Est-ce correct ?

Isn't "après-midi" masculine, and if so should it not be:

cet après-midi sera consacré