I ate _ sandwich while I was waiting for _ 20:
问题描述:
I ate _ sandwich while I was waiting for _ 20:
答
怎么没选项呢。。。
根据已有部分来判断,大概意思是说当我在等...的时候吃了几个三明治
答
a him
我在20:08等他的时候吃了个三明治