become of someone/something
phrasal verb with become verb uk/bɪˈkʌm/ us/bɪˈkʌm/ became | become
C2 （人或事物的）情况（如何），结果（怎样）
If you ask what became of someone or something, you want to know where they are and what happened to them.
Whatever became of that parcel you sent? 你寄出的包裹怎么样了？
And Mickey Adams - I wonder what became of him. 还有米基·亚当斯——不知他后来怎么样？