四级完形填空
One day a police officer manager to get some fresh mushrooms.He was so 1 what he had bought that he offered to 2 the mushrooms with his brother officers.When their breakfast arrived the next day, each officer found some mushrooms on his plate.
“Let the dog 3 a piece first,”suggested one 4 officer who was afraid that the mushrooms might be poisonous.The dog seemed to 5 his mushrooms, and the officers then began to eat their meal saying that the mushrooms had a very strang 6 quite pleasant taste.