—Is the parking space ________ for all the cars in the community?—I’m afraid not, only about half.  

The more you learn , _______.

He lives in a _____ city, I mean in a city that is ______ ．

Shortly after publication, the book became ____ because of the writer’s repeated use of the negative word "nigger" to refer to the black Americans. 

 Look! There are lots of ________ birds flying over the trees.