A-A+
I was (so interested in) the video that I (wat
问题详情
I was (so interested in) the video that I (watched) it (for) two hours before I (realized) it.
A．so interested
B．watched
C．for
D．realized
参考答案
正确答案：B
解析：改为had watched。因为realized是动词过去式，而watch(the video)发生在 realized之前，所以用过去完成时。
