Louis : Hello, Tina. What are you doing here?

Tina : Hi. I’m hanging up swings. Let’s do it together.

Louis : That’s not a good idea. - - - - .You are damaging trees.

Teacher: Water is very important for our lives. People can’t find enough water in many countries.

Mike : Yes, that’s right. We - - - - .

Mr. Right : We shouldn’t waste natural sources and pollute the nature. We should recycle materials to save our planet.

George : What kind of materials can we recycle?

Mr. Right : We can recycle - - - - .

We can see ‘Don’t make fire’ notice - - - - .

- - - - in bathrooms.

Cars are very important in our daily lives; we use them to travel from one place to another in an easy way. But cars produce exhaust gases and these gases damage ozone layer and cause global warming, so we should use public transportation, cycle or walk for short distances to prevent global warming and save the planet. Because our planet is in danger.

The problem is about - - - - .

Cars are very important in our daily lives; we use them to travel from one place to another in an easy way. But cars produce exhaust gases and these gases damage ozone layer and cause global warming, so we should use public transportation, cycle or walk for short distances to prevent global warming and save the planet. Because our planet is in danger.

Why is our planet in danger?

Cars are very important in our daily lives; we use them to travel from one place to another in an easy way. But cars produce exhaust gases and these gases damage ozone layer and cause global warming, so we should use public transportation, cycle or walk for short distances to prevent global warming and save the planet. Because our planet is in danger.

Which one is false?