[单项选择]One day a police officer managed to get some fresh mushrooms(蘑菇). He was so (36) what he had bought that he offered to (37) the mushrooms with his brother officer. When their breakfast arrived (38) , each officer found some mushrooms on his plate.
"Let the dog (39) a piece first , "suggested one (40) officer then began to eat their meal, saying that the mushrooms had who was afraid that the mushroons (41) be poisonous.
The dog seemed to (42) his mushroom and the officers a very strange (43) quite pleasant taste.
An hour (44) ,however, they were all astonished (45) the gardener rushed in and said (46) that the dog was dead. (47) ,the officers jumped into their cars and rushed to the (48) hospital. Pumps(洗胃器)were used and the officers had a very (49) time getting rid of the mushrooms that (50) in their stomachs.
When they (51) to
A. cruelly
B. curiously
C. seriously
D. when