Read the following passage about artificial intelligence and mark the letter A, B, C or D on your answer sheet to indicate the option that best fits each of the numbered blanks from 18 to 22.

Artificial intelligence (AI) is rapidly changing the world around us, from the way we interact with technology to the way we work. AI is already a part of our everyday lives, powering everything from facial recognition to self-driving cars. While AI may seem like something out of a science fiction movie, it is a powerful tool that is quickly becoming more sophisticated and integrated into our lives. AI is not just about computers that can think like humans, ___(1)___. This ability to learn and adapt makes AI incredibly powerful, and it has the potential to revolutionize many industries.
While AI has the potential to improve our lives in many ways, it also raises concerns about the future of work and the potential for AI to displace human jobs. A growing number of industries are adopting AI technologies to automate tasks previously performed by humans, ___(2)___. Experts predict that by 2030, nearly two-thirds of jobs will require AI skills. This means that it is more important than ever to understand how AI works and how it can be used to benefit society. The rapid development of AI has led to a proliferation of AI tools, with new ones being created every day. These tools are being used in a variety of industries, from healthcare to education, and they are helping to automate tasks, improve efficiency, and make better decisions. ___(3)___.
However, it is important to remember that AI is still a developing technology, and it is not without its limitations. ___(4)___ if they are not carefully designed and monitored. It is crucial to use AI responsibly and ethically, and to be aware of its limitations. The future of AI is uncertain, ___(5)___.
(Adapted from https://ourworldindata.org/artificial-intelligence)