ReviewGrammar Slammer Deluxe Checkers is an application developed by English Plus. We know of version 4.2. Version 4.2 is downloadable at our site. Grammar Slammer Deluxe Checkers installation package has a size of 1,609,402 bytes. English Plus also publishes Verbal Vanquish.
As English Plus says: "Most of us properly use grammar in more than 95% of our... more