B1.1 Interactive 2, unit 8 zero conditional

If you're tired, ____.

• you would yawn

• you have yawned

• you yawn

• you yawned

____blue and yellow, you get green.

• You mix

• Unless you mix

• If you don't mix

• If you mix

If you drop a glass, it ____.

• broke

• breaks

• break

• has broken

If you water plants, ____.

• it grows

• they grow

• it will grow

• they grew

Ice melts ____.

• if you heated it

• if you will heat it

• if you heat it

• if you would heat it

You get hungry unless ____.

• you don't eat

• you eat

• you ate

• you will eat

You have to be careful if you ____.

• want to fall

• don't want to fall

• won't fall

• didn't want to fall

Which mean the same thing?

• The light turns on if you press the switch.

• When you press the switch, the light doesn't turn on.

• Unless you press the switch, the light doesn't turn on.

• If you don't press the switch, the light turns on.

When the sun sets, ____.

• it gets dark

• it doesn't get dark

• it got dark

• it has got dark

If it's hot outside, we ____.

• went swimming

• have gone swimming

• go swimming

• goes swimming