Computers sometimes can ___ and the terrible words in English are "___ "You hear it _____ in your daily life when you are ____ . One day , I was at the airport ____ a tiket to Paris and the pretty girl in the booking office said,"I 'm sorry,I can't ___ . Our computer is down." What should I do?I was___.___ the trouble doesn't come from the computer but the person who works on it.