he had deceived a great many people but she

he had deceived a great many people but she _______ him at once.a) saw int
he　had　deceived　a　great　many　people　but　she　_______　him　at　once.　b)　saw　through d)　looked　through

see through倾向于拆穿识破谎言、把戏、阴谋、诡计等伎俩
如：We saw through his lie.
look through更倾向于看穿某事物的意图或是透过遮盖物看到里面的本质
如：He can always look through what I say.