I'm collecting some materials, but there is no electro-edition, so I must scan them. The software can't installed in my computer, so I must scan then by other's computer.

  When I was scanning the materials, the software got something wrong. So my comrade reinstalled the software. After reinstalling, she asked me, "Will you use it again?" "If you don't use it, I'll use it." I answered. And then I was puzzeled by her mood and tone. She said unhappily and in a rising tone, "Your book is still here!" I don't know why she was so angry? I don't think I said something wrong. My answer was reasonable, because that is her computer, if she uses it how can I scan the materials.

  I don't know I did anything wrong. So I was raging in myself, but I didn't say anything. In our office, my colleagues all know that we two are classmates and have a good friendship. In addition, I don't want others laugh at us. So the only thing I can do is tolerating.

  We I finish the short passage, I become calm and don't feel angry any more!