Вариант 3

People spend hours talking on their mobile phones. There is an opinion that it may be (29) to their health, but it is difficult to know for sure. Some research shows that mobile phones may cause brain problems. On the other hand, some doctors say mobiles are not (30) at all. No matter what doctors say, it’s just (31) to live without a mobile phone today. It has become a very (32) device and people can’t do without it. It makes our life (33) and saves time. People can get in touch with each other quickly. Mobile phones make (34) easier.