学进去

Wu Yifan is 12 years old. He ________ three new friends. They are Allen, Diana and Joe. Diana is 12 years old. She has long hair. She likes ________ the piano very much. Allen is 13 years old. He is one year ________ than Wu Yifan. He has short hair and his glasses are brown. Allen often ________ books on the weekend. Joe is 10 years old. He is cool and strong. He likes sports. Last weekend, they ________ mountains together. They are good friends.