单项选择题
A．gain the skills of using your guns B．wipe out a score tanks C．hunt a number of enemy's saucers D．kill some supertanks or missiles
28（）A．tryingB．tryC．trialD．the trial
单项选择题28（）
A．trying B．try C．trial D．the trial
Hide behind the cubes during an attack you can （）A．let ...
单项选择题Hide behind the cubes during an attack you can （）
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
This information refers to （）A．a computer gameB．an unde...
单项选择题This information refers to （）
A．a computer game B．an underwater game C．how to use modem weapons on your enemies D．an army training exercise
