This is an exercise my teacher has given me. Please check for my mistakes in this essay. Thanks in advance.
Discuss about the advantages and disadvantages of mobile phones.
People often focus on the benefits of the mobile phones and are not aware of its disadvantages, of which there are many.
For one thing, mobile phones often disturb people in public places because of the unawareness of the owners. No one can deny that mobile phones are fast and convenient means of communication, you can keep contact with everyone in the world wherever they are. However, it is also the reason why people tend to have their mobile phones on all the time, which can cause a disturbance when they ring. For example, when you are having a meeting and everyone is paying attention to the speaker, your mobile phone suddenly rings louder and louder. The meeting must be interrupted and you will be so embarrassed with others.