Destination B1 - Unit 18 (1-2)

Each person's fingerprints are (unique/automatic/plastic/complicated). No two people have the same fingerprints.

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

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

Where is he? (10 letters, n)

He's doing an ................... (10 letters, n)

It's not a/an (unique/artificial/complicated/plastic) experiment. In fact, ifs really simple.

If you play this stereo on (minimum/maximum/unique/sudden) volume, you'll go deaf!

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

It's not a/an (digital/exact/artificial/automatic) watch. It's got hands.

The experiment just involves / operates answering a few questions.

Was it a/an (minimum/unique/exact/sudden) decision, or had you thought about it for a long time?

Do you know who invented / discovered the planet Mars?

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