短文填空 根据短文内容及首字母提示,补全空格内单词(10分)

It was Sunday morning. A butcher(屠夫) heard the doorbell and thought it must be a customer. But he was s小题1:  to see that a dog was coming into his shop. The dog had $10 and a note in i小题2:  mouth. The butcher took the note and read it. It said,“10 pork chops(排骨), please.”So the butcher took the money and p 小题3: a bag of chops in the dog’s mouth.

Then he q 小题4:  closed the shop because he decided to follow the dog. He found that the dog walked across the road and went to a bus stop. When a bus a  小题5: , the dog checked the number and then got on the bus. After a moment, the dog s小题6: up on his back paws to push the “stop” button(按钮). The bus stopped and the dog got o小题7: . Then the butcher followed it to get off the bus.

The dog ran to a house and dropped the bag in front of the front door. It then began to beat its head against the front door. After a while, a big man opened the door and began s 小题8:  at the dog. The butcher ran up and said to the man angrily, “What are you doing? Your dog is a genius(天才).”The o 小题9:  of the dog said loudly, “Genius? No way! I always tell him to take the keys when he goes to the stores.  But he never l 小题10:to me!”

核对“三证”的第二项是核对（）是否有效，有无涂改痕迹。

A.身份证

B.登机牌

C.机票

D.航空保险