Так, ну например так:
I have a lot of pets, but today I'll tell only about my dog.
Her(His) name is (имя собаки) and she(he) is (возраст) years old. She (he) is very kind and friendly animal, always funny, but sometimes smart, and I think, she (he) understands me.
Every morning I'm walking with my dog, and one day I lost her(him)! It was an unusual, very unusual morning. My dog since 5:00 o'clock woke me up and run to the kitchen, and after five seconds she(he) came back and run to the kitchen again. When we we're at the park, my dog suddenly heard some noises sounds, like cats "meow". (имя собаки) run out of me, and I can't catch her(him). I'm run, run, run, and when I thought, that I really lost my dog, I start crying, an what do you think? Something touch me in my nose, and I saw my dog, she (he) is looking at me with regretfull face, like "I'm so sorry, my dear" After that we go home, and I gave some food to my dog.
Я тут немного от себя добавила, чтоб не было скучно написала, что однажды ты потеряла собаку, но потом она нашлась, и хэппи энд. с;