Just picked up Tofugu’s 4500 Sentences on sale, but surprised there were no answer keys at all.
I did read on the ad just now for the product…
“If you’re stuck and can’t figure out the solution quickly, move on. If you’re too confused, move on. Your goal is to translate anything that’s at your current ability level or slightly above it.”
However, it would be nice just to see the general translation (even though many can be translated different ways), in case you want to refer to it. Because many times I know 90% of the sentence meaning, but there is a nuance I am curious if I am right about. I could post a questions online, but not worth the effort when your just trying to translate as many as possible (unless its something your dying to know). Besides there are many other sentence translations resources available for that, like Anki sentence decks, etc.
Still it would be nice to see one as a quick reference as you go.