i didnot see you at the party oh i for an english test

题目

i didnot see you at the party oh i for an english test
i didnot see you at the party oh i for an englisatest
A was studying B am studying
C studied D were studying
那为什么我的试卷选A老师没打对，
我还是相信大家的！

答案

选A吧
首先根据时态一致原则应该是过去式,排除了B选项.再确定时态应该是过去进行时,表示正在做什么.其次,对am的过去式转换应该是was.