Use (must, may (not), might (not), could, can’t) in the gaps.
1. Joe ... be really excited about his new job in Paris. He’s wanted to live in France for years.
2. He ... stay there for a year or two. It depends if he likes the job.
3. His brother ... move there too next year. He hasn’t decided yet.
4. Joe’s been studying French for ages. He ... speak it really well.
5. I ... visit him in the spring. I’m not sure.