Here are the verbs filled in with the correct future tense:

1. - There's someone at the door. - OK, I **will open** it.
2. My wife and I **are going to start** a new business. We're planning to open an antiques shop.
3. I don't feel like going out this evening. I **am going to stay** at home and watch TV.
4. My current job is boring. I've decided that I **will look** for a new job.
5. - The train is faster than the bus. - OK, I **will take** the train.
6. - There's a big traffic jam on the motorway to the stadium. - OK, I **am going to go** another way.
7. - Do you know what to buy your dad for his birthday? - Yes, I **am going to buy** a watch.
8. I hope that I **will become** a teacher in the future.