The hero boy in the Polar Express is very lonely and disliked by his friends.（)

The hero boy grows up to a man and he can not hear the sound of the bell any more.（)

In the Polar Express, the boy is very willing to hop on the train.（)

The hero boy is a doubter at the beginning of the story.（)

Parents in the Polar Express can hear the sound of the sleighbell, too.（)

The hero girl has helped the lonely boy to find friendship.（)

The northern and southern polar regions are different in many ways. The most important dif