Headings are used to * A)Determine the cause and effect. B)Explain important ideas. C) Help readers understand what the section is about. D) Help readers compare and contrast each section​

Match the description to the term. 1. textbooks conference usage 2. elements surround a word which clarify the meaning casual usage 3. the way in which english is used context 4. family and friends frozen usage 5. friends at a football game formal usage 6. teachers and employers intimate usage 7. making an appointment usage