Proteins ---> amino acids
Carbs ---> glucose, fructose, and galactose, i think off the top of my head
Lipids ---> i'd say glycerol+fatty acids
Nucleic Acids ---> i would say nucleotides. it could be broken down further to the P-group, the nitrogenous bases t/a/c/g/u, and the sugar... but i think nucleotide is the monomer.