He found proof to prove his innocence.

I picked up the leaves that were falling in the park.

He stayed up all night to study for the exam.

I stayed up all night to study for the exam.

This is the proof that proves my innocence.

The police are gathering evidence to determine the culprit.

He is good at speaking English.

This ancient document uses the character '證'.

I saw a red deer in the park.

There are many beautiful acacia trees in this park.