My voice has changed in different circumstances， sometimes loud and high， and sometimes silent.
In my work place， I have to talk to many strangers and give answers to their problems. Besides， I have to control my voice to keep moderate and not be interrupted by others. While I have the conversation with my family and friend， I can express myself more sincerely and I don't have to think about what to say or keep thinking about what other people think of me. I can change my tone very freely or softly， or even shout if necessary.
Therefore， I think that my voice will change according to different people and environments. And I will adjust my voice appropriately in the future.
