社会主义道德建设的原则是
A．为人民服务 B．诚实守信C．集体主义 D．个人主义
参考答案：C
一般饰面颜色为粉色、黄色时，用普通水泥为胶结料。( )
--- I’ll tell Mary about our changes tomorrow.
--- What? You ______ her yesterday.
A．ought to tell
B．must have told
C．might have told
D．should have told
