20.
教えて下さい…
あなたは本当にこんな最後でいいんですか…？
So here 教えて is in the -te form to link with 下さい, right? I think I’m starting to understand.
Anyhow, in this context, I don’t think 教えて means “teach” but rather “tell”, as in:
Tell me please
あなたは本当に we just saw, 最後で: final + manner of action で;
いい means “good” while のですか is a question so:
Tell me please, are you really ok with this being your final moments?