观察右图邮票，该邮票的发行主要是为了纪念五四运动爆发多少周年?
A．28周年
B．29周年
C．17周年
D．36周年
答案：A
站队时，孙强是他那一排的第5个，他后面还有9个人，孙强这一排共有多少个人？
_______ a teacher, I think I should teach the students not only how to learn but also how to be a man. [ ]
A. To be
B. For
C. As
D. With
