Computers sometimes can get you into trouble and the terrible words in English are "Our computer is __________." When I was waiting for a ticket , I heard the pretty girl in the booking office say,"______________." I ____________________ and found all the passengers just drinking coffee and ____________ the dark screen. We give the computer the information about your trip, and then it tells us whether______________. " How long will it be down?" I asked. The girl answered, "Sorry , _______________. Sometimes it's down for _________________. Sometimes it's down for two hours." It is clear that the trouble doesn't come ______________________but ___________ who___________________.