_________the thunderstorm ,they_________ the injured man in time. They felt sorry for that.

A．Had it not been for ; could reach

B．If there was not; might have reached

C．But for; might reach

D．If there hadn’t been ; could have reached

施工完成后，将防尘布包好放入工具包；离开客户处后，将防尘布上的尘土集中倒入附近的公用垃圾桶。