A: Jane, why are you unhappy?
B: I wasn't allowed to play compiler games last night.
A: I's bad for your health if you too much time on them.
B: Maybe you're right.
A: I would like to show you my new model. Look at this.
B: A model rocket! Who made it?
A: It was made by me.
B: Wow! is it made of?
A: It's made of medal. Do you know what a rocket is used for?
B: Sure. I's used for sending spaceships into space.
A: You are right. .learned a lot about spaceships since I joined the science club. I wish I could go into space some day.
B: I hope your dream will come .