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Sandra N. Elbaum was an ESL Instructor at Truman College, one of the City Colleges of Chicago, for thirty-six years. She has also taught in elementary and high schools, and in Mexico, Puerto Rico, the former Soviet Union, and Slovakia. Sandy is the author of the popular series Grammar in Context, now in its Fifth Edition. Sandy received her B.A. in Spanish and M.A. in Teaching English as a Second Language from the University of Illinois.