coursera story about zoo using lots of count and non-count nouns with correct articles and quantifiers

My sister adores animals. We have a parot, a dog and two cats. That`s why I desided to go with her to the zoo. There are a lot of animals. She was so happy when saw tigers and lions. The tigers were lying on a big stone. Suddenly a couple of lions began to fight and my sister was very frightened. Of course, we went to the next part of the zoo. There are several ostrishes. I noticed that the ostrishes ate a great deal of grass. Then we saw a panda. My sister wanted to take tha panda with us. As you understood, I had to buy her an ice-cream so as she forget about that animal. However, we were really happy and got lots of fun.