①竹外桃花三两枝,春江水暖鸭先知
②自古逢秋悲寂寥,我言秋日胜春朝
③纸上得来终觉浅,绝知此事要躬行
④坐地日行八万里,巡天遥看一千河
A:①②
B:①③
C:②④
D:③④
Our school wants two good teachers _____ the School Art Festival.
下列命题中,是真命题的是( )