第30题: [单项选择]Questions 11 to 18 are based on the conversation you have just heard. A. He thinks David is not reliable. B. He’s willing to trust David. C. He has told his doubts to David. D. He thinks David will benefit from this experience. 参考答案:B 答案解析:[听力原文] W: I feel so uneasy about trusting David with our money. How about you M: Some people