. I ate sandwich while I was waiting for 20:08 train.选那个答案,I ate sandwich while I was waiting for 20:08 train.填什么样的冠词

分类: 作业答案 • 2022-05-18 16:42:53

问题描述：

. I ate sandwich while I was waiting for 20:08 train.
选那个答案,
I ate sandwich while I was waiting for 20:08 train.填什么样的冠词

答

I ate a sandwich while I was waiting for the 20:08 train