NS4 U1 modals of certainty

Are the following statements certain or uncertain? Choose the correct option.

By 2050, we could have the technology to copy our brain to a computer, and live forever as a computerised being.

• certain

• uncertain

We must find a way to only use clean and renewable energy by 2050, if we want to save our planet.

• certain

• uncertain

It may become very normal to used artifical body parts in medicine.

• certain

• uncertain

Phone apps that instantly and perfectly translate what you are saying and hearing in any language will become very normal.

• certain

• uncertain

Many top scientists like the late Stephen Hawking are convinced that the future ...................  a much better place to live than today's world.

• might not be

• won't be

Since they are so intelligent, there  ................ be  a very good reason why they are so pessimistic.

• might

• must

His biggest worry was that AI  ................ spiral  out of control and become so intelligent it takes over humanity.

• may

• might

On the one hand, Hawking believed that we  ..................... further develop  AI technology, because there are just too many possibilities for it.

• may

• must

However, he feared that AI  .............. find  a way to copy itself.

• could

• might

Humans  .................. not be  necessary anymore for this new lifeform.

• may

• might