问题描述：
There was a little water left in the bottle,wasn't there?
这里为什么用wasn't there而不用was there?请说明原因,
这里为什么用wasn't there而不用was there?请说明原因,
问题解答：
我来补答展开全文阅读
问题描述：
问题解答：
我来补答