Mr Green asked Lily whether she had passed the ( )

直接引语改间接引语：
1.直接引语是一般疑问句时,变成间接引语,由连词whether或if 引导.例如：
　　He asked me,“Do you like watching TV?”→He asked me if/whether I liked watching TV.
2.直接引语变间接引语时,如果引述动词为过去式,需注意时态的变化：如：
　　1) Betty said,“Lingling is singing in the classroom now.” 现在进行时→
　　Betty said Lingling was singing in the class room then.-过去进行时
　　2) He said,“I will go to London next week.” 一般将来时→
　　He said he would go to London next week.过去将来时
　　3) My mother said,“I have already cleaned the house.” 现在完成时→
　　My mother said she had already cleaned the house.过去完成时
还有,一般过去时,改为过去完成时
3.直接引语变间接引语时,指示代词、时间状语、地点状语、动词等要作相应的变化.如：this→that,these→those,now→then,today→that day,yesterday→the day before,last year→the year before,ago→before,here→there come→go等.例如：
）

这题想考什么啊，不通啊

pass 可及物也可不及物，a的话就是通过昨天，意思不对，cd表述不对，b应该是以前的一天

这是一个间接引语选B
Mr.Green asked Lily whether she had passed the exam the day before
改为直接引语就是Mr.Green asked lily"Did you pass the exam yesterday?"
变法如下
直接引语 间接引语
now 现在 then 那时；当时

pass a day before

时态 还是时态哦 ago 与 before 的区别 恩 你自己去看吧、、