Quantifiers

Theory for Few/ little
http://grammar.ccc.commnet.edu/grammar/determiners/determiners.htm


Exercises for:

a few/ a little

http://www.edufind.com/english/grammar/Determiners7b.cfm


how much/ how many
http://www.edufind.com/english/grammar/DETERMINERS7a.cfm


enough/ too

http://perso.wanadoo.es/autoenglish/gr.too.i.htm

Online (a)few, (a) little
http://perso.wanadoo.es/autoenglish/gr.few.i.htm

If you want more exercises about the rest , look for the Grammar book:
English Grammar in Use
Intermediate
Raymond Murphy
CUP


Looking forward to receiving your comments about your progress, reinforcement, improvement,etc.