Recently, it has been reported that a boy fell down into a sewer（下水道）, because he lost himself in his smart phone. When he realized his situation, he tried hard to get out of the sewer, ___1___  he failed. Later, with the help of the police, he was finally  ___2___. It sounds a little unbelievable, but when we look at the people around, we can find most of them are paying more attention ___3___ their phones rather than face-to-face communication. Many people like to talk on the Internet, so they don’t care the things in the real world. No matter what they are doing, such as  ___4___ for the bus or sitting at the table with their friends, smart phones are always at their hands. Even though smart phones play an important role in our daily life, they should be used wisely. We can’t let the technology control  ___5___ . We are the masters of our own lives!