52.任务型阅读, 阅读下面短文并回答问题
Bob has a good friend, Caesar. He is a brown dog. He is a two-year -old dog. Bob gets him from Mr. Mason.
One day, Bob's father, mother and Bob go to Mason's farm (农场) for lunch. After lunch, Mr. Mason says, "I'm going to a big city. But I can't take him there. I can't have a young dog in a big city." "Let me have him, Mr. Mason. He knows me well and we have no dog," Bob says. Mr. Mason looks at Bob's mother and father.
"Please, Mother, let me have him," says Bob.
"Ask your father," she says.
"Please, Dad?"
"Yes, you can have him."
"Thank you, dear Dad. Thanks, Mr. Mason. Come here, Caesar."
"See! The dog is yours now," says Mr. Mason.