Requirements: The use of mobile telephone has become more and more popular. However, some people think that despite its convenience.it often causes disturbances in public and interferes people's private lives. Write an essay of about 200 words on this issue to state your own opinion. In the first part of your writing you should present your thesis statement and in the second part you should support the thesis statement with appropriate details. In the last part you should bring what you have written to a natural conclusion with a summary. Marks will be awarded for organization as well as for syntactic variety and appropriate word choice.