Writing Tests

[Dave Brown]

Hello,   First, is there a package that assists with writing tests?  I'm interested in multiple choice, but even more so, fill in the blank, short answer, and even essays.  This is for a French class.   But my real question is, is there a way to get LaTeX to move the line produced by a \rule command to the next line if it's going to stick out into the margin?  I'd like to be able to define a command (something like \blank) that would put in a line of a given length, but not give me errors about the line going to far; if it was too far, it should automatically put it on the next line.   Lastly, is there any way to get the values of various style parameters such as \baselinestretch?  I have a command that switches to double space, but I'd like to be able to determine the existing spacing, switch to double spacing, and then switch back to the previous spacing.   (Thanks for a very useful product; this is for developers and the user community that make it practical)   Any help is much appreciated!   --Dave