1.hao many elephants are there in zoo? 2.can the dolphins p;ay with a ball?

1.hao many elephants are there in zoo? 2.can the dolphins p;ay with a ball?
We are going to visit the zoo tomorrow. Our city has a big zoo with a lot of aniamls in it.There are two big elephants in the zoo. I want to ride on them. The elephants eat a lot of grass every day. They like children because sometimes give them bread and bananas. The elephants like bananas very much.
Some aniamls are very friendly, but some are dangerous. I think the most interesting animals in the zoo are the dolphins. They swim so fast and jump so high. I like watching them swim and jump. They can play with a ball. They can stand up and walk on water. They are friendly to people. They can help you when you fall into (掉进)water and can't swim. I like them very much.
题目在上面，速度，各位高人