He is participating in the activities of helping the lepers, and is doing his best to help patients with leprosy.

He caught a big snakehead in the river.

He believes in the afterlife.

His birthday has arrived.

He paid for the travel expenses in advance.

I ordered the product after making a payment in advance.

The battleship sank due to the enemy's torpedo attack.

Our submarine carried out a torpedo attack against the enemy fleet.

Suddenly, a sound like a thunderclap echoed.

Every time the thunder roared, he was startled like a lion.