Two years ago our school started a digital reading plan and gave a (11) to every student. The change was not easy. Teachers first had to learn the new (12) that runs the reading lessons, and the school (13) often slowed down when three hundred people went online at the same time. A few machines even (14) during the week of the first exams. Today, however, few teachers want to go back. Students hand in their homework through one simple (15), and anyone who misses a lesson can watch it again at home. Most teachers now say the technology finally saves time.
Ten years ago most people kept their files on one computer at home. If that (16) was stolen or damaged, the photos were gone forever. Today many of us store everything in the (17) instead. Companies keep our files on huge machines far away, and we open them with a password or a short (18) sent to our phone. The change is useful, but it does bring risks. A single (19) at one company can expose millions of private records. Experts therefore advise users to check their settings in a (20) way at least twice a year.