16課 結末・最終の状態 教科書 p.68〜73
Conclusion & final state — in the end there is no…, just leave it as it is…, there is only way…
接続：動辞書形 ＋ まで(のこと)だ
There's only one way…（it's okay）. If this option fails, choose another method, don't hesitate.
注意 / Note：Show determination and calmness. With 動た形＋までのことだ it means "it's just that...".
比較 / Compare：〜まで(のこと)だ（only way…, calmly）／〜しかない（close in meaning but without the nuance of determination）.
よく出る形 / Common form：動辞書形＋まで(のこと)だ.
バスがなければ、歩いて行くまでのことだ。
If there's no bus, just walk, that's it.
断られたら、また別の会社に頼むまでだ。
If it's rejected, ask another company, that's it.
話し合いで解決しないなら、法的手段に出るまでだ。
If negotiations fail, the only remaining solution is legal action.