He was sexually turned on by her beauty.

She was wearing a dress with a mottled pattern.

I saw a flock of sheep on the top of the mountain.

He spoke to a group of students.

He joined the group.

Finding an asterism is a great joy for astronomers.

Looking down at the sea, I could see a school of fish swimming.

Please choose the correct one from the set of possible answers to this question.

It's very exciting to see a crowd of horses running at the racetrack.

A new approach is needed to solve this set of problems.