Question

Write third or mixed conditional sentences.

1 the last ice age/not end/if Earth's climate/not change.

2 if humans/cared more/about the Earth, they/not do/so much damage to the planet.

3 dinosaurs/survive/until today if a meteorite/not wipe them out.

4 if we/not invent//guns and bombs, the world be/a safer place today.

5 if the Easter Islanders/not cut down/so many trees, deforestation/not occur.

6 we/not know/so much about the world if the internet/not be/invented.​​

Answer 1

1. the last ice age wouldn't have ended if Earth's climate hadn't changed.

2. if humans cared more about the Earth, they wouldn't have done so much damage to the planet.

3. dinosaurs would have survived until today if a meteorite hadn't wiped them out.

4. if we had not invented guns and bombs, the world would be a safer place today.

5. if the Easter Islanders hadn't cut down so many trees, deforestation wouldn't have occurred.

6. we would not know so much about the world if the internet hadn't been invented.​​