Choose the correct form to complete the sentences

1. It
   [is going to|will] be warm in several days.
2. Are you waiting for me? I
   [am coming|will come] tonight.
3. We probably
   [aren't|won't be] back in time.
4. In 300 years the world
   [is going to|will] be a completely different place.
5. Look at these clouds! It
   [will|is going to] rain soon.
6. I hope you
   [will|-] get higher marks next time.