morning前面用in，in morning意思是早上；在上午。例句He had them on parade at six o\'clock in the morning（他让他们早晨6点列队接受检阅）。
in morning的`例句He read about it in his morning paper（他在晨报上读到这条消息）；The mist melted rapidly in the morning sun（在早晨的阳光下，薄雾涣然消散了）。
