她回到公寓，发现邻居留了一个包裹。

She returned to her apartment to ___find that her neighbor had left a package.

他发现自己有快速学习语言的天赋。

He ___found that he had a talent for learning languages quickly.

试用后，我发现这款新软件非常用户友好。

After trying it, I ___found that the new software was very user-friendly.