VOCABULARY UNIT 3 - OPTIMISE B2

Do you know who ......... electricity?

• discovered

• invented

A microwave oven has an electric ....... so the food rotates as it is cooking.

• engine

• motor

Most countries burn a lot of fuel in order to ........ electricity.

• generate

• develop

Electric dishwashers are useful ........

• appliances

• tools

Scientists are carrying ........ research to find a cure for this disease.

• out

• on

This plan isn’t working. We need to come ....... with a better idea.

• into

• up

‘Is your new house ready yet?’‘No, but the work is coming ........ nicely.’

• in

• on

Someone hacked into the bank’s computer but the police are looking ......... it.

• into

• out

I think it’s ......... you took your studies a little more seriously.

• high time

• top priority

You need a ........ microscope in order to see some insects clearly.

• high-powered

• high-definition