英语翻译：亨利不知道究竟要如何才能证实他对事情真相的怀疑(confirm)

Henry doesnt know how to confirm his suspect to the truth of this matter on earth.

Henry didn't know whether to how to prove the truth of his doubt

Heny是我最亲密的朋友，你可以信任他。 （最近的是*的，已经包含了“最”的意思）

Henry does not know exactly how to confirm his casting doubt on the truth of the

Henry didn't know how to confirm his doubt (suspicion) about the truth.