Can any English experts help me in getting an answer for this:"A father beats up his son because he was drunk".So, who was drunk in the above sentence .??? Edit: Corrected misspelling 'grammer' to correct 'grammar' in heading. CJ

The question is unanswerable.

English has no way of disambiguating references of pronouns like 'he' and 'she' when there is more than one possible antecedent.

To clarify what is meant the sentence must be stated differently.