Potluck (1)

Avocado fruits ______ for more than 10,000 years in South America.

The Japanese have succeeded in _______ household robots for some time.

The old man couldn't eat solids as he had very ________ teeth left.

As soon as you saw a robot you expected ______ them go crazy.

Julie isn't very popular at school. She's got ________ friends.

Don´t you think most people would prefer ______ with a real person?

With modern technology microscopic objects like viruses _______ visible.

Don't go rafting when there is a thunderstorm. You ______ by lightning.

There are ________ young people who would like to study abroad.

We've heard a lot about scientists who've managed ________ robots with intelligence

Governments should consider _______ robots ethically.

We all remember ______ those old black and white science fiction films at the cinema.

My week is rather hectic but I have ________ free time on Thursday.

Sally spent a great ________ of time on the project.

A human being hasn't evolved ________ at a screen all day.

Which expression is used with only uncountable nouns ?

Which expression can be used for both countable and uncountable nouns?

Do we risk ______ our day-to-day life controlled by machines that think for themselves?

There was ________ chance of finding the mountaineers alive after so many days.

A dangerous ________ of radioactivity was released into the environment last month.

Even at a lower price ________ specialist books would be sold.