13. Open the brackets to complete the text.

Tom was bored. He did not want to watch TV or listen to the radio. He wanted to do something interesting. "What shall I do?" he thought. Then Tom had an idea. He decided to collect something. "What shall I collect?" he thought. "I know! I'll collect stamps." Every day Tom went to his uncle and asked him for some stamps. "Why don't you collect coins?" said Tom's uncle. "You can easily find coins in the USA and Japan. He was proud of his uncle's advice.