I am lonely. 

In the woods, Panda Bear was lonely. He couldn't find anyone to play with.

I can't play with you.

I'll play with you! Let's see who can stand on one leg the longest.

"I'll play with you!" said Flamingo. Let's see who can stand on one leg the longest. 

But Panda Bear couldn't stand on one leg. "I can't play with you.", he said sadly.

Sure! Let's swing from tree to tree.

I can't. I'm too heavy.

An excited Monkey said, "I'll play with you! Let's swing from tree to tree." 

But Panda Bear couldn't swing on trees. "I can't, I'm too heavy." he said sadly.

I can't fly as high as you Parrot. I don't have wings.

Play with me Panda Bear! We'll have a race to see who can fly the highest!

A Parrot flew past him and said "Play with me Panda Bear. We'll have a race to see who can fly the highest!"

But Panda Bear shook his head. I can't fly as high as you, Parrot. I don't have wings."