<p><a href="https://open.books4languages.com/english-a1-grammar/chapter/wh-questions/"><strong>Wh- questions</strong></a> always begin with one of the <strong>wh- question words</strong> (interrogative pronouns), which show what kind of information is wanted {see <a href="https://open.books4languages.com/english-a1-grammar/chapter/wh-questions/">Wh- Questions</a>, A1 Level}.</p>
<p>The pronoun <strong>who</strong> is used to ask about the subject of the action.</p>
<p><a href="https://open.books4languages.com/english-a2-grammar/chapter/wh-questions-words-who/">https://open.books4languages.com/english-a2-grammar/chapter/wh-questions-words-who/</a></p>