1 Complete the words. 1 net 2 drop- menu 3 web 4 head 5 broad 6 wire 2 Match these words with the definitions. There are four extra words. 3 Choose the correct alternative. 1 He backed off/up the files on a flash drive in case he lost them. 2 It's strange that my mobile can't pick/run up a signal here because there must be coverage. 3 Can you print out/up a copy of those lyrics so I can keep them? 4 An advert suddenly popped/set up on the screen. 5 All cars will run on/up electricity one day. 6 You need to zoom in/up to see the image more clearly 7 That sound is the alarm on my mobile. Why is it going off/out if I didn't set it? 1 keep your finger on a button for a few seconds 2 use your fingers to make an image bigger or smaller 3 put something into something else 4 when a computer stops working 5 change or move something slightly so that it's better 6 remove information stored in a computer 7 give power back to a battery ​