1. They're going to launch the rocket!

2. I think I'll ask my mum.

3. Come to my house. I'm going to watch Mars Attacks on DVD tonight.

4. Perhaps we'll never find life on other planets.

5. My friend's dad is going to be an astronaut! He started his training last week.

Ответ:

1. 're

2. 'll

3. 'm

4. 'll

5. 'is