One day, Bill went to the beach with his friends Jim and Bob. After playing for a while, Bill fell （sleep） on the comfortable beach. After an hour, he woke up. He found his friends volleyball. Bill walked towards them and b to play with them.     

    Bob hit the ball too hard and it (fall) into the sea. Just as Bob was going to pick up the ball, a strong blew it away. Bill wanted to show off (炫耀) his swimming skills, so he decided to get the back for them.

    After swimming for about ten minutes, Bill became tired. He r it was impossible for him to get the ball. But he tried his best to swim to it. At that moment, some black clouds appeared in the sky！Oh, what strange weather it was！It started to rain .  

    At that time Jim and Bob were completely surprised because they couldn't see Bill. They didn't just stand on the beach in s anymore. They shouted for help.

    (luck), a young man saved Bill.