问题
选择题
---By the way, how many of us can attend the meeting?
---The number of the students to attend the meeting _____ fifty.
A．is
B．has
C．are
D．have
答案
答案：A
The number of+复数名词，作主语，谓语动词用单数，且根据句意：参加会议的学生数目是五十。所以用A。