Revise the following sentences: This year writing will be a major focus, its' important to understand grammer rules, without them you're writing is difficult to understand.

Once a week well begin class with one of these sets of M. U.G. sentences, M. U.G. by the way is an abbreviation of "mechanics, usage and grammer"

This year writing will be a major focus, its' important to understand grammer rules, without them you're writing is difficult to understand.

Writing is a major learning focus this year. One must understand and follow grammar rules. Without such rules, one's writing is incomprehensible.

Once a week well begin class with one of these sets of M.U.G. sentences, M.U.G. by the way is an abbreviation of "mechanics, usage and grammer"

Once a week at the start of class, the instructional focus will be on mechanics, usage, and grammar.