✨ ベストアンサー ✨
少しだけ直してみました
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1 If I had had some more courage, I could have declared my love to her.
2 If I had been born in an English-speaking country, I would not need to study English so hard.
3 If everyone had the same characteristic, personality, and way of thinking, there would be no conflict in the world.
4 If I had had more money, I would have studied English at a language school in America.
5 If humans could fly in the sky like birds, they wouldn't get lost anymore.
ありがとうございます🙇♂️✨