We exchange old books with friends or give them to _____.
charity
____________ is one of the most serious environmental problems.
Global warming
Nowadays, customers like to buy ______ products. (friend)
environmentally friendly / environment-friendly / eco-friendly
Everyone should follow the 3Rs to ______ the environment.
protect/save
I bought some shopping bags at the _____.
check-out
If you find a beautiful old glass, you should ______ it.
decorate
If you give your friend a present, ____ it up in colorful papers.
wrap
You should use the ______ shopping bags to protect the environment.
reusable
If I become the 3R Club _______, I will organise some book fairs.
President
The 5 types of pullution will ______ the environment.
destroy
If we cut down trees in the forest, there will be more ______.
floods
We're going ___ a picnic tomorrow.
on
We should find ______ ways to reuse old items instead of throwing them away. (create)
creative
We put the _____ bins in every classroom.
recycling
Teachers should encourage students to ______ books from the library instead of buying new ones.
borrow
Schools should teach children to _____ rubbish.
pick up
If more people cycle, the air will be _____.
cleaner
The ______ in my neighborhood is very serious.
noise pollution