____21. A baby's babbling, widespread use of verbal dueling, poetry writing as well as self-singing all show that language can be used to amuse the speakers. ( )
IV. Answer the following questions.
37. What are the attributes of language that must be included in the definition of language?
38. In what way do langue, competence and linguistic potential agree? In what way do they differ?
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V. Define the following terms:
1. design features
4. prescriptive 7. duality
10. performance
13. cultural transmission
2. synchronic 3. diachronic
5. descriptive
6. arbitrariness
8. displacement 9. competence 11. langue
12. parole
14. phatic communinion
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