Bonjour,
Réponse :
1-We are going to visit the pyramids. (Visit-visited)
be going to + BV
2-This book is mine (my/mine)
mine = le mien/à moi
3-1 go to school on foot. ( on-by)
on foot : à pied
4-4 Whose pencils is this? (What-whose)
À qui
5-I have flowers, I'm going to give them to my mother ( it- them)
6-The desert is in the middle of country .( is-are)