Câu hỏi:

It’s such a ____ of clean water when you forget to turn the tap off

Many high school students volunteered to ______ the polluted river

In order to reduce our _____ , we should cycle or take a bus to school instead of using motorbikes

It takes hundreds of years for one plastic bottle to ______ in the ground

Several traditional customs that can do damage to the environment should be changed for a more ______ future

Ms. Brown often uses leftovers to make her own _____

The water has become undrinkable because it has been ______ with lead

They _______ extensive research on the environmental effects of using fake Christmas trees

Many celebrities adopt a green lifestyle, ________ helps the environment a lot

Choose the answer that indicates the underlined part that needs correction in each of the following questions.

We need to discuss about our new recycling program, which aims to reduce waste in our community