阅读理解。根据短文内容选择最佳答案。

Tom was busy at the weekend. On Saturday morning, he did his homework. In the afternoon , he cleaned his room. Then he went to visit his grandparents. Tom had dinner with his grandparents. Grandma cooked delicious noodles. On Sunday morning, Tom went to the library. He read a book about animals there. He had lunch at KFC. In the afternoon, he played chess with his friend. In the evening, Tom watched a cartoon. It was interesting.