In order to protect the environment。supermarkets and stores are forbidden tofree plastic bags to shoppers．

e dormitory, many students like to _______ pictures to make the room less bare.

I’m surprised more and more people________participate in the morning exercises in the plaza now.—Morning is a time of day.

Nowadays people are more concerned about theenvironment ___ they live.

________ is your ruler —- It’s orange.