他们昨天去看望了谁？翻译成英文

who did they visit yesterday?

Who did they to see yesterday?

Whom did they see yesterday?

樱花女女不要害人了
几条题目的答案都是错的

他们昨天去看望了谁？

Who did they go and visit yesterday?

They never use “whom” anymore， GRANDPA~！

Who did they go visit yesterday?
我知道这不合语法，因为在go和visit之间缺少and作为连接，但确实口语就这么说，相信我~！

Whom did they visit yesterday?
whom在这里做宾语