SECTION C ( 12 points )

Directions: Complete the following passage by filling in each blank with one word that best fits the context.

Mr. Smith used to be in prison for three years, which may have you think he is not a good man. But  48 _ a matter of fact, he is kind-hearted as well as honest. The reason  49  he was put into prison was not that he himself broke the law, 50  that his six-year-old son blew up（使…爆炸）the bridge near his home, imitating what he had seen on TV. 51  this little boy did break the law, he was too young to be put in prison. According to the local law, the boy’s parents had to be punished. As a result, Mr. Smith received the punishment. He was arrested and taken to  52  police station finally. Most of the people in the town showed pity on him, but it was useless. After all, law is law. Everybody is to obey  53. As the proverb of “When it rains, it pours”, Mrs. Smith was out of work before long. She had to move to a southern state, 54  she was born and grew up. Misfortunes tell us what fortune is. 55  the Smiths have experienced does teach us a good lesson.

可使粪便化学法隐血试验出现假阴性的物质是（）

A.铁剂

B.铋剂

C.维生素C

D.动物血

E.食物鱼肉