story: Alex had just moved into his new house. School was about to start and he was nervous. He had only one bus driver his whole school life. So when a new looking bus pulled up he was scared. But then he saw it was the same driver just with a new bus.
 selected sentence: He had only one bus driver his whole school life.
Alex only has one bus driver his whole life >Causes> Alex feel(s) nervous about having a new bus driver