A．阅读短文，从方框中选择适当的单词填空 (每词限用一次)。

Do you know Xiaochai? He is a smart dog, a kind of Qiutian, and very famous online now days. The kind of dog is only ____________ Japan. Xiaochai is six years old now. He started to look after the store for his master ____________ he was ten months old.
People are very___________ to see Xiaochai to do something as a store seller. When the store bell rings, the little dog stands with his ____________ legs. He opens the window with his nose and front legs. Do you think he is a good ____________ to his master? Come to meet the dog store seller!