Any contract to commit a crime is in of a statute and therefore unenforceable. A contract to sell illegal drugs in violation of criminal laws is because it is a crime. A contract to smuggle undocumented workers into the United States for an employer is and therefore unenforceable.

The answers are "violation", "unenforceable" and "illegal" respectively,

Explanation:

The statement is thus rewritten below:

"Any contract to commit a crime is in___violation of a statute and therefore unenforceable. A contract to sell illegal drugs in violation of criminal laws is unenforceable because it is a crime. A contract to smuggle undocumented workers into the United States for an employer isillegal_ and therefore unenforceable".

answer; eliminate parking problems in cities, because a car took up only half as much space as a horse and buggy;