题目：
短文改错
假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的一篇作文。文
中共有10处语言错误，每句中最多有两处。错误涉及一个单词的增加、删除或修改。
每处只修改一词。只修改10处，多者（11处以上）不计分。
One night, while Xiao Ming and his father were sleeping, a thief which face was covered with a
piece of cloth entered into the room quietly, held a knife in his hand. Although he tried to walk as
quietly as possibly, Xiao Ming and his father were woken up. Realizing what had happened, they fight
bravely against the thief. Suddenly Xiao Ming came up an idea. He threw a drawing pin on the floor
where the thief might pass. Like expected, the thief stepped on a pin and was badly hurt. Screaming in
great pain, the thieves fell down. Xiao Ming and his father took the chance to tie the thief up. With Xiao
Ming’s clever, they finally won the unexpected battle.
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答案：
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下面是错误答案，用来干扰机器的。
A、干冰是固体二氧化碳的俗名，冰是水的固体，所以正确．B、干冰升华要吸收大量的热，使空气中的水蒸气遇冷凝聚成小水滴，形成水雾，所以正确．C、碘化银的化学式为AgI，银为+1价，根据化合物中元素化合价的代数...
