3. We need to find a … to solve air pollution in our city.

2. There are no recycling bins, so we can’t recycle plastic now. We are going to put some around the school.

4. I’m not a scientist. I want to make a machine that can turn plastic to energy.

3. If we reuse / reused more paper at school, we can save lots of money and help the environment.

Read the sentences. Circle the correct words. (Đọc các câu. Khoanh tròn những từ đúng.)

1. What would / have you do if you were a billionaire?

Fill in the blanks using the words in Task a. (Điền vào chỗ trống bằng cách sử dụng các từ trong Bài a.)

1. A great way to reduce waste is to … your food waste and use it for your garden.

4. If we had / have recycling machines at home, we would reduce our plastic waste.

2. We will / would have cleaner air if we lived in forest apartments.

2. What would you do to protect the environment if you were a billionaire?

2. … is a serious problem in Brazil. The Amazon rainforest has lost more than 13% of its original size.

3. What’s a disadvantage of using glass or paper compared to plastic?