单项选择题A. Ask the audience many questions. B. Summarize the material which is familiar to the listeners. C. Give detailed facts and numbers that the audience have known. D. Give different ideas which are beyond the audience’s understanding.
单项选择题A. His father graduated from the university.B. His mother did not think it a great university.C. His parents did not have enough money for him.D. His parents needed him to help support the family.