Now the air in our hometown is even thanit was before.—So we must do something to stop it.

Seeing the frightening tiger, all the people_____.

What are we visiting next Monday—A modern city that has appeared in ________ was a village ten years ago.

Thanks to the application of new farming methods,output is now six times _____it was before 2000.

Don’t tell anybody else what I said. You ______ keep it a secret.