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，错误涉及一个单词的增加、删除或修改。
增加：在缺词处加一个漏词符号（/\）,并在该句下面写出该加的词。
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 grandfather and I enjoy fishing.
One Sunday morning we go fishing at a lake. We took ours fishing poles and headed
for the lake. As soon as we arrived, so we dropped the lines into the water. Before waiting
for about half an hour, I was beginning to get impatiently. I wanted to give up, and my
grandfather told me to wait a little longer. Finally, there were a sudden pull at the pole
and fish was caught . Within the next few minute, my grandfather also caught a fish.
Felt hungry, we built a fire by the lake and barbecued the fish. It was delicious.