父母把照顾弟弟的责任托付给了我。

My parents ___entrusted me with the responsibility of taking care of my younger brother.

他把重要文件托付给了他的律师保管。

He ___entrusted the important documents to his lawyer for safekeeping.

她将重要文件委托给助理保管。

She ___entrusted her assistant with the important documents.