This is a popular grammar, but it's Ciceronian/"Classical" Latin. If you want an active and/or passive mastery of Latin, read Fr. Most's Latin by the Natural Method instead.
PDF contains answer keys for 7th, 6th, and 3rd eds. of Wheelock's Latin and that for Scribblers, Sculptors, and Scribes.
For nearly sixty years, Wheelock's Latin has remained the opitmus liber of beginning Latin textbooks.
When Professor Frederic M. Wheelock's Latin first appeared in 1956, the reviews extolled its thoroughness, organization, and conciseness; one reviewer predicted that the book "might well become the standard text" for introducing students to elementary Latin. Now, nearly six decades later, that prediction has certainly proved accurate.
This new edition of Wheelock's Latin has all of the features, many of them improved and expanded, that have made it the bestselling single-volume beginning Latin textbook:
* 40 chapters with grammatical explanations and readings drawn from the works of Rome's major prose and verse writers;
* Self-tutorial exercises, each with an answer key, for independent study;
* An extensive English--Latin/Latin--English vocabulary section;
* A rich selection of original Latin...