单项选择题
A．keep after a flying target B．hit a flying saucer C．fire straight at a missle D．keep chasing the enemy's tanks
A．let them shoot over you without any danger B．be certain of hitting your target(靶子) C．easily shoot from behind them D．fire straight at your enemy
A．that children also like to have jobs outside B．that there is a wide choice of employment for children C．that father do not like to pursue employment at home anymore D．that children nowadays rarely see their places of work