It was reported about ten years ago that mobile phones would be the cigarettes of the  (twenty-one) century. That is TURE! It   (seem) that the use of mobile phones for some people is almost as addictive    cigarettes. Many users keep them  (work)for hours a day. Many people use them not only   (talk) with people, send and receive messages, but also play games, take photos of even get on the Internet to read news. They say they can't live  them. But this is not a little thing. In fact too much use of mobile phones may cause   (ill), and many people have got headache by   (use)mobile phones too much. Now in other   (country), mobile phones carry a health warning on the back just like    cigarettes packets do.