If you are the owner of a mobile - it's great! Frankly speaking, many teenagers can't allow themselves to buy a mobile because their parents don't have enough money to buy their children a mobile. Having a mobile you have a nice opportunity to search any information you need for your study or work. You can learn new foreign words, watch films, chat with your friends and send them emails. Also you can listen to your favourite music and get any information about some celebrities you like. In the morning you can get to know the weather forecast and wear necessary clothes according to the weather.
However, there are some cons of using the mobile. Firstly, you waste plenty of your time surfing the Internet, playing some games. Secondly, you spoil your eyesight and in some time you will have to wear glasses. You mustn't use your mobile at the lessons, speak on it in the library or in the public transport.
Of course, it is better to spend more time playing sport instead of using the mobile for a long time.
Объяснение:
i mustn't litter
i mustn't scream
i mustn't sit on the windowsill
i mustn't say bad words