Dialogue 1 W: You seem _________ today. Is everything OK? M: Terrible. I ______ all my computer files. W: Gosh. What happened? M: My computer _________ last night when I was browsing a website. W: Have you had it repaired? Maybe the files can be _________. M: Now it's ________ check in the service center. Hope everything is OK. You know, all my important files are in the computer. W: You should have _________ them _____ to an external hard drive or something. M: Yeah, but I often forget to do so.