Today I took Frank to have a training class  . We got there earlier than most of the other dogs and _ . Mr. Brown helped us teach our dogs some skills  . When the dog did it, he said, "Good dog!" He was a serious man but he laughed a lot with dogs. He said Frank was smarter than other dogs. Next to Frank was also a smart dog. His name was Sam. His short legs made him look funny, but he could run faster than many of the bigger dogs. His owner was a quiet girl and looked a little shy. So I said hello to her first. I hoped she could be my friend. At the end of the class, Mr. Brown told me that Frank did the best this class and he would give him a ball. Who is Frank?
He's a dog. She's a shy girl. He's a quiet boy. She's a teacher.