用适当的介词或副词填空
He saw a policeman pointing a gun __________ astranger.
He looked __________ and found a tall tower in the south.
I lost sight __________ him in the crowd.
The program is aimed __________ those who form abad habit of playing computer games.
Armed __________ necessary equipment, they set offfor the forest.
In this area, the private houses eventually gave way __________ city hall.
You should have a talk __________ him.
His father persuaded him to give himself __________.
He lay in bed, awake, deep __________ thought lastnight.
Thenoise of the car die __________ in the distance.