— Hi. Susan, when is Teachers' Day in China?
— It's September 10th.
A:in
B:on
C:at
D:for
读图,完成下列小题。
为使自己成为一个人才,你打算怎样履行受教育的义务?
化简(5﹣2)2015•(5+2)2016=____ .