Jack: Hey, Kelly and Sam. I bought a new game. Do you want to play it with me? Kelly: Of course. I can't live without   5   games. Sam: What is the game about?Jack: It's about   6   math, so you have to think and count. Kelly: Count?Sam: Well, you know I am not good at math, so don't ask me   7   it. Jack: Don't worry. We can   8   doing it before we start. Kelly: OK. Let's begin.Jack: Look at this card and tell me the number, Kelly. Kelly: The number is nine. Jack: Good! It's your turn, Sam. Sam: Oh! It's time for my piano class, so I have to go. Maybe next time. Bye!
【題組】5.
(A) to play
(B) playing
(C) play
(D) for playing