Question

【题目】Old people must .

A. speak polite B. be spoken to politely

C. speak to polite D. be spoken politely

Answer 1

【答案】B

【解析】

试题分析：句意：跟老人说话要有礼貌。此题考查含有情态动词的被动语态的基本构成。情态动词+be+过去分词。speak to sb.给某人说话。to不可省略。故答案为B。