It is hard to keep track of all the new __________ that appear in the tech world every month., invent, inventions, inventors, inventing, The documentary about space was so __________, that the students asked to watch it again., interest, use, entertain, entertaining, Mastering a new language can be quite __________ at the beginning, but it's worth it., difficult, difficulty, difficulting, differ, She was so __________ during the lecture that she almost fell asleep; it was a very __________ talk., bored / bored, boring / bored, boring / boring, bored / boring, Scientists have found evidence of the __________ of water on the Moon., exist, existing, existence, to exist, Even though they are experts, some people don't feel __________ when using the latest software., useful, comfort, comfortable, interesting, Modern gadgets help us stay organized by _________ our schedules and _________ us of important events., managing, reminding, managing, to remind, to manage, reminding, manage, remind, For some people, it is impossible __________ a day without a smartphone., imagining, imagine, to imagine, live, The discovery of electricity was a massive __________ breakthrough for humanity., science, scientific, scientist, My grandmother is still learning how _________ a tablet for video calls., use, to use, using, used, The _________ of the steam engine was a turning point in history, as it led to the Industrial Revolution., discovery, inventor, invention, inventing, He is very 1)__________ in 2)__________ apps for mobile devices., 1)interested, 2) to desire, 1)interesting, 2) designing, 1)interested, 2) designing, 1)interest, 2) desire, It is much easier to keep in __________ with relatives who live abroad thanks to messengers., touch, touching, communicate, communication, You shouldn't worry if you __________ mistakes in your English test; just keep practicing., do, speak, make, learn, Many 1)__________ were originally designed for military use, not for 2)__________., 1) invention 2) entertainment, 1) inventions 2) to entertain, 1) inventions 2) entertainment, My brother never goes outside and just plays video games all day; he’s a real __________., lazy, a relaxing person, an advanced person, a couch potato, Recent __________ in AI technology are changing how we write and create art., appliances, advances, instruments, discoveries

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