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短文。短文中共有10处错误，每句中最多有两处。错误涉及一个单词的增加、删除或修改。
增加：在缺词处加一个漏字符号（∧），并在此符号下面写出该加的词。
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：⒈ 每处错误及其修改均仅限一词；
⒉ 只允许修改10处，多者（从第11处起）不计分。
My uncle lives no far from my home and I visit him every Sunday. Yesterday I visited him with my sister by bikes. As usually, we stayed at his home for a very longer time. We talked about things that had been happened in my school last week, especially the low grades I had got. He encouraged me believe in myself but work harder. The talk with him really cheers me up. He also prepared a delicious meal for us. We three had the good time together. After leave his house, we rode home happily.
）可作为火箭发动机的燃料，NH3与NaClO反应可得到肼．