Answer
Structure of the monomers that are used to make the said polyamide are written below:
Work Step by Step
First, we have to think from the structure of the polymer that condensation reaction takes place to form the polyamide where two H atom of one $NH_{2}$ of one molecule and two OH group from two $COOH$ of one molecule participates in condensation reaction by eliminating two $H_{2}O$ molecules. This can be seen below from the figure.