A: Hi! Can I help you? B: It seems all the programs are (1) . At first, Excel did not work. And then all my files seemed to have gone. Why is my computer acting this way? A: Let me see. Does the Internet still work? B: No. I’m (2) , but there is. A: As I can see, you haven’t updated your anti-virus protection for three weeks in a row. And the virus is of the (3) . B: Oh, my! Is there any possibility that my documents get restored? A: I guess I can handle it. Let’s get started. (Half an hour later, the problem is solved.) A: It’s OK. You can (4) your documents. B: Many thanks. You do save my computer. A: If anything is wrong with your computer, don’t hesitate to come to our center and we are (5) .