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

Why/ not/ we/ sing/ English song?

No/ house/ street/ older/ this one.

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 has a lot of benefits.

Why don’t we __________ old school objects for candies?

Glass is a wonderful substance. It can be recycled over and over again. The good thing about glass recycling is that the glass retains its quality. Imagine how many bottles of soda, juice and glass jars are used daily. If we simply throw them away, the environment will suffer greatly. There are many advantages of glass recycling. The first thing is that glass recycling reduces industrial pollution. Reducing industrial pollution benefits not only the environment but also the entire ecosystem. Another benefit is the recycling of glass conserves natural resources. Recycling glass saves on the need to obtain more materials to make new glass; therefore, they save existing natural resources.

Why does recycling glass save existing natural resources?