Many birds are out of ____________ now,because we have done a lot of things to protect __________ birds.

They are just trying to reach a point ______ both sides will sit down together at the table.

You’d better not phone me tomorrow evening; I ____ animportant meeting then

That was not the first time he us. I think it’s high time we strong actions against him.

Mike used to be a top student, but he______ behind since he lost himself in computer games.