志愿者的精神是“（）”。
参考答案：奉献，友爱，互助，进步
---Do you know __________?
---I’m not sure. Maybe he is a teacher.
A．what the man with glasses is
B．what is the man with glasses
C．who the man with glasses is
D．who is the man with glasses
从所给的四个选项中，选择最合适的一个填入问号处，使之呈现一定的规律性（）
A．
B．
C．
D．
