Betty had worn glasses for fifteen years. She decided to get contact lenses. She would be able to see better. She would look more glamorous, (compound —complex sentence)
Betty had worn glasses for fifteen years, and she decided to get contact leases so that she would be able to see better and look more glamorous. //Betty had worn glasses for fifteen years, and she decided to get contact lenses so that she would not only be able to see better but also look more glamorous.