来自郭金柱的问题
Theschoolbusaccidienthappened----themorningofFebruary21,2011
Theschoolbusaccidienthappened----themorningofFebruary21,2011


Theschoolbusaccidienthappened----themorningofFebruary21,2011
Theschoolbusaccidienthappened----themorningofFebruary21,2011
Theschoolbusaccidienthappened-on---themorningofFebruary21,2011
凡是看到时间非常具体的都用on、一定记住.