英语34.I didn’t know when they________ again.

34.I didn’t know when they________ again.
A.came B.were coming C.had come D.had been coming

为什么

英语 呀 ~I didn,t hear what he was saying 与 I didn,t hear what he said两个地方怎么来区别的呀? 英语 呀 ~I didn,t hear what he was saying 与 I didn,t hear what he said两个地方怎么来区别的呀？! 改英语句子，同义句 I didn't hear from my mother. 高考英语25 I didn't know when they ___again. I didn't necessarily work I didn't qutie understand ..... SORRY，I didn`t catch you I didn't speak to anyone. I didn't understand ________________ ----I didn't see her yesterday.