Mr. Black had two cats. One was very big and （1） was quite small. He liked them very much. One day, Mr. Green, a friend of his, came to see him. When he saw two holes （2） the door – a large hole and a small one, he was surprised and said, "My dear friend, why （3） two holes in your door?"" （4） why are there two holes? （5） can the big cat go through the small hole?" he said
3.________

A.But

B.in

C.the other

D.dHow

E.eare there