Close-Up B2 Conditionals

I would have saved water if I ___________ we could run out of it.

• knew

• had known

• know

If you _______________ anybody, I will explain you my project.

• tell

• didn't tell

• don't tell

I would use solar panels if I ____________ more money.

• had

• have

• would have

Would you have been more concerned about the environment if you _________________ the chance?

• have had

• had had

• have

What ________________________ to forests if we start to recycle more paper?

• would have happened

• would happen

• will happen

Water boils if we __________________ it to 100°C.

• heat

• heats

• could heat

Many animals woudn't be in danger of extiction if we ____________ more careful with our planet Earth.

• had been

• were

• are

If the sea levels rise, coastal cities _____________________.

• flood

• will flood

• would flood