Here are the completed sentences using "going to":
- Are you going to buy a new bike?
- Tom is not going to be a doctor.
- I am going to buy some new shoes.
- Is Helen going to catch the train?
- Who is going to carry the shopping for me?
- Jim and Dinah are not going to get married.
- Sam is going to take a holiday.
- What time are you going to phone me?
- Where are we going to eat tonight?
- I am not going to give a birthday present.