Read the text and choose the right options to complete the sentences.

Have you ever thought about the future? One of the most amazing ... I have heard about the twenty-first century is that we will be living longer and longer. Scientists will have ... up with a cure for a lot of the most common diseases that people die of at the moment. They say that by the year 2050, the average person's lifespan will have ... to one hundred years.
They also predict that work will take ... less of our lives and we will have more free time to spend. Robots, which will look more and more like human beings, will have taken ... a lot of the boring everyday jobs we do today. In the next ten years, the Japanese will have ... a robot that understands human speech. This is not science fiction: the optimists say that by the year 2020 we will have created humanoids with brains ... to those of an adult human being. This will ... about a big change in the way we live.
However, many experts feel pessimistic about the future. They predict that people themselves will look like robots. They will have microchips in various parts of their body, which will connect them to a ... variety of gadgets. Some experts even see robots as a ... to human freedom. They are afraid that we will not be able to control them and that in the end, they will control us.