问题补充:
Old people must .
A. speak to polite
B. be spoken politely
C. be spoken to politely
D. be spoken to polite
答案:
A. speak to polite
B. be spoken politely
(答案→)C. be spoken to politely
D. be spoken to polite
解析: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
时间:2023-02-02 19:48:00
Old people must .
A. speak to polite
B. be spoken politely
C. be spoken to politely
D. be spoken to polite
A. speak to polite
B. be spoken politely
(答案→)C. be spoken to politely
D. be spoken to polite
解析: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