Listen to the text "Pollution".

Choose the right sentence:

1.

• They pretended they’re not polluting.
• They pretend they’re not polluting.
• They pretend they’re polluting.

• Not using the car when we can’t walk is one way.
• Not using the car when we can walk is one way.
• Not using the car when we could walk is one way.

• Barack Obama says he’s not going to do his best to help the Earth.
• Barack Obama says he’s going to did his best to help the Earth.
• Barack Obama says he’s going to do his best to help the Earth.