A dog entered a butcher's（肉贩）shop with a note in his mouth. The note read, “$10 of lamb chops (羊排），please.”

    The butcher was very____(surprise). He took the money, put a bag of chops in the____(dog) mouth, and then he closed the shop____(quick). He followed the dog and watched him wait for a green light. Then the dog crossed the road to a bus stop. He checked the timetable and sat on the bench. When a bus arrived, the dog checked the number and got____it.

    As the bus traveled out into the countryside, the dog enjoyed the scenery. After____ while, he stood on his back paws (爪子）____ (push) the “stop” button. Then the butcher followed ____(he) off.

    The dog ran up to a house and dropped his bag on the ground. He went back down the path, took a big run, and____ (throw) himself against the door. No answer. He repeated the action a few times. Then a big man opened the door ____ started complaining(抱怨) about the dog and beating him.

    Seeing this, the butcher ran up and shouted at the man, “What are you doing? This dog is a genius!” The man replied, “Genius? No way! He has forgotten his key for the____(four) times this month!”