I’m ________ (sit) on a train. All around me people are ________ (use) their smartphones . They’re ________ (make) calls. They’re ________ (get) calls. They’re ________ (send) voice messages to their boyfriends and girlfriends, their parents, and their bosses! Phones are ________ (ring) everywhere! I’m ________ (get) a headache (头痛) . Smartphones are very useful, but they are also a big problem. There is no “quiet” or “alone” time. Oh, er ... excuse me. I have to go. My smartphone is ________ (ring).