.It is that people will not agree with what the manager at the meeting.
A. certainly
B. sure
C. certain
D. surely
网友回答
A. certainly
B. sure
(答案→)C. certain
D. surely
解析：词义辨析。A. 副词，当然 B. 副词当然，形容词，确信的；可靠地 C . 形容词必然的；有把握的 D. 副词，当然，无疑。句意：在会议上人们必然不会与经理意见保持一致。结合语境可知选C。