（1）How old was Billy when he started playing chess？
A.6.
B.7.
C.8.
（2）Who is Jack？
A.Billy's brother.
B.Billy's classmate.
C.Billy's friend.
（3）How long did Billy and Jack play chess every day at that time？
A.For one hour.
B.For two hours.
C.For three hours.
（4）What did Billy do to improve his chess skills？
A.He took chess lessons.
B.He joined the chess club at school.
C.He studied chess matches in books.
（5）What does Billy think of Chess.jye.ai？
A.Boring.
B.Helpful.
C.Funny.