Answer:
Mrs. Grayson, the much loved teacher of first grade, retired last year.
Explanation:
The subject of this sentence is Mrs. Grayson, and the sentence says she retired last year at age seventy two. "The much loved teacher" describes Mrs. Grayson, and should have a comma after (and before it).
Facebook opening to anyone above 13,twitter opening,PlayStation 3,google bought YouTube , widgets, one billionth song was purchased on iTunes ,internet explorer, and Pluto was downgraded
Explanation: ok will do no worries