💡 Detailed Explanation
Translation: Tomorrow, I will go to the movie theater together with my friend.
- Grammatical point: Mutual action/companion particle と (to - with).
- Explanation: The particle 'と' is used with 'いっしょに' (together) to mean 'with [someone]'. '友達と' means 'with friend'.
- Why other choices are incorrect:
- に (ni): destination/target.
- が (ga): subject.
- へ (e): direction (映画館へ is already used).