日本語をクリックすると英文が表示されます。まずは自分で英語にしてから答え合わせを。
If only I'd stopped him then.
If it had failed, it would have been a disaster.
I could have done it if I'd really wanted to.
Without that experience, I wouldn't be who I am.
I can't help wondering about the road not taken.
I should have double-checked, just in case.
That decision was our undoing.
If only I hadn't turned a blind eye.
I regret not being more careful.
I wish I'd been more honest with myself.
If you hadn't shown up, I'd have been done for.
I should have taken that advice.