2K12CB B1 UNIT 18 PART 1

These flowers aren't real; they're made of plastic. They are ______.

• natural

• complicated

• artificial

• sudden

You don't need to push this door; it opens by itself. It is ______.

• complicated

• automatic

• plastic

• digital

I can't understand these instructions. They are too ______.

• simple

• short

• complicated

• exact

Because it is getting colder, there is a ______ in the number of people at the beach.

• research

• maximum

• effect

• decrease

My new watch doesn't have hands; it shows the time with numbers. It's a ______ watch.

• sudden

• unique

• digital

• complicated

Scientists want to ______ new planets in space.

• invent

• operate

• discover

• involve

Drinking too much coffee can have a bad ______ on your sleep.

• effect

• equipment

• research

• gadget

To play tennis, you need special equipment, like a racket and balls.

• equipment

• software

• research

• technology

Can you ______ how many people will come to the party?

• discover

• estimate

• operate

• invent

I need your ______ address to send you the letter.

• minimum

• sudden

• exact

• digital