He got involved in his friend's trouble.

He skillfully dodged the enemy's attack by making it miss.

The beast devoured his meal.

He was confused about that problem.

I went to see a movie by myself.

Watching a movie alone is enjoyable.

Weak interaction is one of the four fundamental forces between elementary particles.

He is an excellent doctor.

He is a famous author, and his works are loved by many readers.

He is recognized as the top person in that field.