听第10段材料,回答第17—20题。
What is the purpose of the woman’s talk?
A.Encouraging people to ask questions. B.Giving an introduction to her speech. C.Discussing problems in learnin9.
参考答案:
答案解析:
We learn this passage that AInericans_________.
We learn this passage that AInericans_________. A.are good at cheating B.are pol