School systems usually center on______A．professional capacities.B．personal personalities.C

Children in hospital usually turn to ______in order to catch up with their school work.A．h

American students usually get their high school diploma at the age of______.A．12B．17C．20D．

Breakfast in the school canteen usually______egg, bread, and milkA．consists ofB．is consist

Ideally then, a school system should be one in which the love of learning, ______the acqui

Dir Sanders’ study centered on how ants_________.

After school we usually play ______ soccer for half _______ hour on _______ sports ground.