英文句子have to be told

I do not have to be told to learn 的 told 當然與‘談話’無關。

Told 這裡的意思是：to be ordered or advised to do something 被命令或勸告。
I do not have to be told to learn = 我學習是不需要別人命令或勸諭的 (即 會自動自覺學習)。

又例如, 洛杉磯銀河隊本星期日和南華邀請隊比賽的門票昨天發售, 買票者眾, 情況混亂, 售票處人員勸諭球迷排隊輪購, 英文是 Soccer fans were told to line in queque for the purchase of tickets.

另一例子：Do as you are told 叫你怎樣做, 你便怎樣做。

Let me think...
Your sentence should be 「Tom does not have to be told on」

因為 told 是告訴的意思，任何情況下都不會使用被動式的，唯有 told on，told on 是告發的意思，這裡就可以使用被動式了。

Tom does not have to be told on 整句是「 阿 Tom 一定沒有被告發」。

have to be told on 是「一定會被告發」，have to 是「一定」，文法只是普通的現在式 (Simple present tense) 而已；而 be told on 就是「被告發」，文法則是被動式 (Passive voice)。