Bear's Loose Tooth

This book is borrowed from the Toronto Public Library. I find that there're many words difficult for me even in the book for kids. The native speakers may think some of them natural and easy, it's not for me as a new comer.

From a cave in the forest came a munch, munch, crunch as Bear and his friends all nibbled on their lunch.
Bear savored every bite.
He gulped and he gobbled.
Then there in his mouth something wiggled, and it wobbled.
As Bear nibbled food, something moved when he chewed!
It was … Bear’s loose tooth!
Bear pointed in his mouth and he said, “Oh, dear! My tooth feels funny. It’s the one right here.”
Bear frowned and he worried.
Tears welled in his eyes.
“But how will I eat if my tooth says good-bye?”
Hare said, “Open wide.”
Then he looked inside and saw Bear’s loose tooth.
Mouse sueaked, “Don’t fret. Don’t fuss. Look, see? A new tooth will grow where the old used to be.”
“We’ll help!” said Wren.
“I know what to do!
It’s out with the old and in with the new!”
Wren perched on Bear’s lip and he got a good grip on Bear’s loose tooth.
Wren pulled on the tooth with all of his might.
“Is it out?” asked Bear.
But it stayed stuck tight.
“I’m a bit too small for the job,” said Wren.
So Owl grabbed the tooth.
But the tooth stayed in.
Badger said, “I’ll try.”
And he gave a big pry on Bear’s loose tooth.
They all took a turn, but the tooth wouldn’t budge.
Then …
Bear used his tongue and he gave a little nudge.
His tooth wiggled to and fro;
then what do you know …
Bear’s tooth fell OUT!
Bear danced a big dance.
Bear grinned a big grin
Bear held his tooth and he showed all his friends.
Bear looked in the mirror, and he laughed at his smile.
A new tooth would come, but it might take a while.
That night in bed, right next to his head lay Bear’s loose tooth.
While he slept and he snored, a fairy fluttered in, and she left blueberries where Bear’s tooth had been!
He woke in the morning and found the sweet treat.
Bear’s friends came for breakfast.
They sat down to eat.
Bear gulped and he gobbled, and he felt something wobble …
Uh-oh!
Bear’s loose tooth!