1 . We should get strong to ________ (保卫) our country.

2 . It is important for us ________（保护）the Earth.

3 . They find it important ________ (protect) the environment.

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

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

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

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

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