It is being used as a transition word .
to inform readers about seeing-eye dogs
Explanation:
We are proud of your great success.We all send your our heartiest congratulation.You have really worked hard. You deserved this succees .
I would say, D) Both are outwardly beautiful, but of less value internally.
Answer: Animals can provide lots of beneficial things such as food, clothing, medicine, soil etc.
Explanation: