listen and answer the questions:

1.Have scientists sent a spacecraft to Mars?
2.Have astronauts discovered life on Mars yet?

Daming: Hi, Tony. What are you up to? 
Tony: Hi Daming, I've just made this model of the space station. What do you think? 
Daming: It's great. Is this for your space travel homework? I haven't started it yet. 
Tony: Don't panic! Ms James wants it next week. Have you heard the latest news? Some scientists have sent a spacecraft to Mars. It has taken several months to get there. 
Daming: Has it arrived yet? 
Tony: Yes, it has. That's why it's on the news. 
Daming: And have the astronauts discovered life on Mars? 
Tony: No, not yet. There aren't any astronauts in the spacecraft. 
Daming: But astronauts have already been to the moon. 
Tony: Yes, but no one has been recently. But lots of astronauts have worked on the space station. They take the space shuttle, and go there and back. 
Daming: You know a lot about space travel. Can I show your space station to my parents? 
Tony: But I hear they've gone to Shanghai on business. 
Daming: Oh, they're coming back this evening. I'd like to show it to them. 
Tony: All right, you can borrow it. But bring it back tomorrow.