17.Old people must_____.A.be spoken to politely B.speak to polite C.be spoken politely D.speak
问题描述：
17.Old people must_____.A.be spoken to politely B.speak to polite C.be spoken politely D.speak
答
答案：Old people must【be spoken to politely .】
大意；跟老人说话要有礼貌.
解析：此题考的而是被动语态的用法.
【你的10分满意,我们团队的无限动】那么C呢？speak to sb .翻译为跟某人说话.介词to不可以少的.