1 . We must do something to p________ the environment.

2 . We must ________(protect) ourselves anytime and anywhere.

3 . The pollution is getting worse. We need to take action _________ (protect) our Earth.

4 . We can plant more trees around the city because it’s important _____（protect）the Earth.

5 . Everyone should do what he can ________ (protect) the environment.

6 . China has passed a law to ______ (保护) the Yangze River, which is the longest river in China.

7 . It is important for us _______ (protect) the Earth.

8 . It is of great importance to ________（保护）the environment from being polluted.