单项选择题
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.shoot its back B.get behind it C.move it to the side D.move out of its way
A.keep after a flying target B.hit a flying saucer C.fire straight at a missle D.keep chasing the enemy’s tanks