问题描述:
现在式转换为过去式
I think I was have a good time on this vacation.这句话是标准的过去式吗?
I think I was have a good time on this vacation.这句话是标准的过去式吗?
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