💡 Detailed Explanation
Translation: Where will you go tomorrow?
- Grammatical point: Interrogative pronouns combined with directional particle へ (e).
- Explanation: The particle 'へ' represents direction or destination (headed toward...). Therefore, the question must ask about a 'place', requiring the interrogative pronoun 'どこ' (where).
- Why other choices are incorrect:
- だれ (who) -> Pairs with 'と' (with whom) or 'が' (who),
- いつ (when) -> Represents time, doesn't take 'へ' directional particle,
- なに (what) -> Used for objects, usually paired with 'を' or 'が'.