Inventions and Technologies (B1 Destination U18. ...

You need at least three people to operate / estimate this machine safely.

The experiment just involves / operates answering a few questions.

I'm using a computer research / program that translates from English into Greek.

There's a lack / an effect of phones in this office. We need some more!

Professor Reinhart decreases / runs the computer lab with her three assistants.

This drug seems to have no effect / lack on humans at all.

Do you know who invented / discovered the planet Mars?

The number of people dying of malaria has run / decreased enormously over the last 100 years.

Modern technology / equipment makes all our lives easier.

Could you program / estimate how many times a week you eat cheese?

Do you think anyone will ever invent / discover a time machine?

We've done a lot of research / experiment into why people are scared of spiders.