what does Digory see in Aslan’s eyes, when he asks Him to cure His mother?

He saw the great shinning tears stood in the Lion’s eyes. 

What does that tell us about Aslan?

Aslan was sympathy like human. Aslan could feel the feeling of Digory’s grief for his mother.

What happens to Strawberry in this chapter?

The strawberry would be winged horse and he had a name of Fledge. The wings burst out from the shoulders of Fledge. He gave a great sweep with wings and leaped to the air.

The fledge would be the father of all flying horses. 

What mission does Aslan give to Digory and the horse?

Fledge will carry Digory to fly to the mountain valley. They must go to Western Wild and  across  through mountains until they found a green valley with a blue lake in it, walled round by mountains of ice. At the end of the lake there is a steep, green hill. On the top of the hill there is a garden. In the center of the garden is a tree. They must pluck an apple form the tree and bring it to Aslan.

When they plant a tree in Narnia that can protect Narnia from Witch for many years.