Conditional sentences

If we continue to pollute, more and more species __________extint.

• would become

• will become

• would have become

If I were you, I _________ GMO food. It's unsafe!

• won't eat

• wouldn't eat

• would eat

If forests ___________cut down, we will have less oxygen and more allergies.

• are

• will be

• were

If there were more electric cars, the levels of pollution caused by exaust fumes ______________

• will decrease

• would decrease

• would have decreased

Sea levels will rise if the temperature ________________ to increase

• will continue

• continues

• continue

We wouldn't have wasted so many natural resources if we .....more in the past.

• had had recycled

• had recycled

• recycled

If we carpooled more, we ____________ to a more healthy environment

• would contribute

• would had contributed

• would have contributed

We might yet save endangered species if we _____cutting down the forests

• had stopped

• stopped

• have stopped

If plastic containers haven't been dumped into the ocean, marine life ___________

• wouldn't have been damaged.

• would have been damaged

• would damage

5 If humans hadn’t destroyed their natural habitats, Bengal tigers ____________ endangered.

• would have been

• wouldn't be

• will be