Câu hỏi: Choose the letter A, B, C or D the word that has the underlined part different from others.

They are using leaves __________ food.

Do you know what ___________ water pollution?

Good morning, I’m Alex. And today I will talk about recycling. Recycling has a lot of advantages. Firstly, it saves the environment. Instead of cutting more trees to produce paper, we can use recycled papers. Secondly, recycling also saves energy. Thirdly, recycling helps reducing global warming and reduce pollution. Finally, recycling helps saving money. Recycled articles cost less than new ones. In conclusion, using recycled product is environmentally-friendly and money-saving. Therefore, we should put plastic bottles in recycling bins and buy recycled products.

Recycling is both environmentally-friendly and money-saving.

If we continue to deforest, our earth ___________ polluted.