She will tell us why she feels so strongly that each of us has a role _____ in making the earth a better place to live in.

ite ______ students, their teacher’s advice ismore important than ______ of their parents.

For many cities in the world, there is no room to spread out further, _____ New York is an example.

“Must we do it now?” “No, you _____.”

How should I do the experiment next? —- Do as you .