问题描述:
请问 How long has She been skating?How long has She skated?How long did she skate?
这三个句子在语义上有哪些区别呢?
这三个句子在语义上有哪些区别呢?
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