题目内容：

Why didn't you go to the movie yeaturday?-----Because I_____it before A had looked B have seen C have looked at D had seen

优质解答

B:have seen
说话人 是在 现在说,have,但事情是过去做过的,故用seen
look 一般作为不及物动词,且不用于电影.
had done 是过去完成时,表过去的过去.
have done 是现在完成时,表在过去发生的动作对现有影响.