Can you play tennis?
Yes, I can.
It is interesting, isn't it?
Yes, it's very interesting.
Can you teach me?
Sure. Take the tennis racket. Now, throw the ball up, and hit it with the racket. Like this.
Let me try. Oh, I missed!
Throw the ball up high.
High?
Yes, very high. Over your head. Then you will have time to hit the ball.
Oh! I hit it.
Well done!