单项选择题
A．deceive customers B．increase production C．push the sale D．arouse suspicion
28（）A．tryingB．tryC．trialD．the trial
单项选择题28（）
A．trying B．try C．trial D．the trial
You are likely to be attacked if you （）A．keep after a f...
单项选择题You are likely to be attacked if you （）
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 good plan when fighting against an enemy tank is to （...
单项选择题A good plan when fighting against an enemy tank is to （）
A．shoot its back B．get behind it C．move it to the side D．move out of its way
