@stephen Sas, who studies with Bikkhu Bodhi, taught an introductory Pali class on YouTube over the summer based on da Silva’s books. The class was discussed elsewhere on this site - and probably more than once, but here is a link to one mention. IIRC the BAUS website has links to download da Silva’s Primer and the Answer Key (2 texts).
ETA: Wow! BAUS has updated their website with their Pali language classes. Everything you need is here.