Is the sentence below acceptable in formal written English?

[Kentucki]

Is the sentence below acceptable in formal written English? Does it have any mistake?

Her education had filled her with anger against those whom she believed had hurt or humiliated her.

According to my textbook, whom is incorrect. Why?

Kentucki

[Lost_Soul]

Hi !

Acc. to my dictionary, noun "anger" usually goes with prepositions at, towards and with.
Haven't heard it go with against . Is it also possible ?

[Conchita]

'Whom' is an object pronoun and what you need here is a subject pronoun -- 'those who' is the subject of the verbs 'hurt' and 'humiliated'. Thus the sentence should read as follows:

Her education had filled her with anger against those who(,) she believed(,) had hurt or humiliated her.

Try setting off 'she believed' with commas to make the sentence easier to understand.

[Conchita]