Complete the sentences using the correct forms of the words in the box.

Gap-fill exercise

Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button to get a clue. Note that you will lose points if you ask for hints or clues!
   activate      applications      artificial intelligence      virtual   
1. In the future, we might see more of AI in every aspect of life.
2. Websites use to learn about users' shopping preferences and recommend products or services.
3. It is quite simple to this robot and ask it to perform some tasks.
4. Computer software is used by travel agents to create tours of popular destinations.