用适当的连词填空The school rules state that no child shall be allowed out of the school during the day,__________ accompanied by an adult.
During his election ______(运动) he promised to put the economy back on its feet.
There is no c______ between the two incidents.
It is only the a______ of these goals that will finally bring lasting peace.
Two thirds of the water ______ (have) been used but still two thirds of the people _____(be) short of fresh water.
The father as well as three children ______ skating on the frozen river in winter.(go)