Directories and ____ are organization units on storage devices.

Structures can be stacked or connected to one another at their ____.

The ________ operator could be used, in some situations, to simplify nested selection structures.

The statements that appear between the while and the end while clauses are called the ________.

The ____ variable is initialized before entering the loop.

When you think in an object-oriented manner, every object is a member of a ____.