英语简单的语法
问题描述：
英语简单的语法
When +v.(过去式),后面的句子动词应该用?was/were v.ing 还是v.过去式?
答
这个不一定比如When he came ,I was reading.他来的时候,我在读书.When he came,I had finished read the book.他来得时候,我已经读完书了.When his father died,he knew nothing about it.他父亲去世的时候,他一无...