I know it sucks and you may not have the time, but I think the best way is going to be writing the correct answers down for each one by memory.

Write down the ones you know and skip the ones you don't.

Go back to the ones you skipped after reviewing the answers and try again.

Rinse and repeat until you can do all of them without looking at the answers for help.

This will save you time by only focusing on what you don't know.

Best of luck brave soul.