Choose a suitable word to fill in each gap to complete the passage.
It is estimated that about three billion people use the Internet around the world. Most people use the Internet to (1) get information; says; that activity; the field or for entertainment. A new study, however, shows us that almost ten percent of Internet users are using it so often that it is seriously harming their lives. The study (2) says; get information; that activity; the field that these people may find it difficult to stop using the Internet because they have become addicted. Someone who is addicted finds it extremely difficult to stop doing (3) that activity; the field; addictive; get information. According to a psychologist in (4) the field; addictive; says; that activity, thirty percent of Internet users claim that they use the Internet to escape from their problems. The study also shows that having a chat, or discussion, with strangers on the Internet is one of the most (5) addictive; says; that activity; get information activities.