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以下作文。文中
共有10处语言错误，每句中最多有两处。每处错误仅涉及一个单词的增加、删除或修改。
增加：在缺词处加一个漏字符号(^)，并在其下面写出该加的词。
删除：把多余的词用斜线(＼)划掉。
修改：在错的词下划一横线，并在该词下面写出修改后的词。
注意：
1. 每处错误及其修改均仅限一词；
2. 只允许修改10处，多者（从第11处起）不计分。
My dentist had just pulled out one of my tooth and had told me to rest for while. My mouth
was full with cotton wool. He knew I collected bird eggs and asks me whether my collection was
growing. He then asked me a lot of other question. In answer to these questions, I could neither
nod or make strange noises. Meanwhile, my tongue was busy search out the hole where the tooth
had been. I suddenly felt very worried, so couldn't say everything. When the dentist at last removed
the cotton wool, I was able to tell him of that he had pulled out the wrong tooth.
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