B. But I liked your old dog. It was friendly.
但我喜欢你原来的狗。它很友善。
When your dog gets old, you can have it put to sleep.
当你的狗变老的时候，你可以把它安乐死。
Your dog should be at least a year old before testing him.
你的狗狗应该至少一岁才可以测试。
"I've come to see your dog," I said, and the old man smiled.
“我是来给您的狗看病的。”我说道。老人笑了。
"I've come to see your dog," I said, and the old man smiled.
“我是来给您的狗看病的。”我说道。老人笑了。
应用推荐