Упражнение 417 на Future Simple


Почему мы используем Future Simple в этих предложениях? Рассортируйте.

Shall we invite Alex and Rona? I'd love to see them. →
A: Oh, I've broken the vase. B: Don't worry, I'll fix it. →
All the hotels are booked. I'm not sure I'll find anything for our dates. →
The air conditioning won't work. It must have broken down again. →
Spontaneous decision
"Doesn't want to"