短文改错。
下面短文中有10处语言错误。请在有错误的地方增加、删除或修改某个单词。
增加：在缺词处加一个漏字符号（∧），并在下面加上该加的词。
删除：把多余的词用斜线（\）划掉。
修改：在错的词下划一横线，并在该词下面写上修改后的词。
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。
I like riding my bike. Though it is not very new, but it is my best friend. I find very convenient to go
anywhere with a bike. Riding gives me not only exercises but also pleasure. I use my bike almost in
summer when the weather is warm and dry. It can be very pleasant in winter when it is cold and rain is
pour down. It can also be very dangerous. Of course I will be very carefully on my bike. In fact,
accidents are not the only problem. Once I went bookstore on my mother's bike to buy some books
and come out to find the bike missing. Now I have two strong lock.
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