I thought my answer was wrong, but I guess I hit it on the nose.

我原以为我的答案是错误的，但现在我认为我回答得很对。

youdao

I thought my answer was right, but the result showed I am wrong.

我原以为我的答案是对的，可结果却是错的。

youdao

He gave the answer he knew was wrong.

他给了一个他明知是错误的回答。

youdao

He gave the answer he knew was wrong.

他给了一个他明知是错误的回答。

youdao