in the fist time还是at the fist time 还是on

in the fist time还是at the fist time 还是on 是in the half-time 还是on the half-time还是at the half-time 是in the half-time 还是on the half-time 还是at 他和half time it is the fist time that I ___ a kite the same time前要加in,at,on还是FOR? in the same time还是at the same time? in the breakfast time还是at the breakfast time 是in the day time还是on the day time In England,the fist name is at the time in the time on time 的区别. In the afternoon on February fist.请问：为什么用 “on” ,可否先说“On Febr on time还是in time?