问题
选择题
Old people must __________.
A．speak to polite
B．be spoken politely
C．be spoken to politely
D．be spoken to polite
答案
答案：C
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
搜题请搜索小程序“爱下问搜题”
Old people must __________.
A．speak to polite
B．be spoken politely
C．be spoken to politely
D．be spoken to polite
答案：C
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
