Circle the correct word.
1. Do you know who invented / discovered the planet Mars?
-> discovered
2. The number of people dying of malaria has run / decreased enormously over the last 100 years.
-> decreased
3. You need at least three people to operate / estimate this machine safely.
-> operate
4. Modern technology / equipment makes all our lives easier.
-> technology
5. We've done a lot of research / experiment into why people are scared of spiders.
-> research
6. I'm using a computer research / program that translates from English into Greek.
-> program
7. This drug seems to have no effect / lack on humans at all.
-> effect
8. The experiment just involves / operates answering a few questions.
-> involves
9. Could you program / estimate how many times a week you eat cheese?
-> estimate
10. Do you think anyone will ever invent / discover a times machine?
-> invent
11. Professor Reinhart decreases / runs the computer lab with her three assistants.
-> runs
12. There's a lack / an effect of phones in this office. We need some more!
-> a lack