TOEFL Listening: ETS-TOEFL听力机经 - 3CNX2V85O3MS1_7TP$

Why does the professor talk about an impossible task and a magical helper? A. To indicate elements of fairy tales that have hidden meanings. B. To show that fairy tales typically contain variations on standard elements. C. To caution the student to avoid predictable patterns in her own writing. D. To suggest that certain details of fairy tales originated in a older genre.