French language Q&A Forum

I am in the progress of learning French,  I am confused with adverbs of quantity.

Could someone give me the rules to use this?

Please explain the suitable adverbs of quantity suits for the following sentences 

a. Nous avons ____________________ travail a faire ! 

b. Vous achetez _____________________ de romans que vos copains. 

c. Il y a ____________________ étudiants dans la classe. 

d. Helene n’aime pas les fruits, elle prend ____________________ fruits 

e. ____________________ trousses a-t-elle ?

 f. Jean aime les haricots verts ; il mange ____________________ haricots verts que son frère. 

g. Elle n’aime pas le coca ; Elle boit ____________________ coca que sa mère

For me, avoir envie means would like, or wants..., whereas avoir besoin de indicates a need. This distinction seems borne out by the lesson itself, where avoir envie is NOT shown as an alterntive to avoir besoin de...In your lesson you say that in some/certain cases avoir envie can mean "need", but there are no examples of this and there's no explanation. Looking at the examples, it appears that avoir envie CAN mean "need": IF it is followed by "aller". I agree with Sandra (below). This matter shouls not be tested until the distinction is made clear.