Afterworkingforalongtime,.但为什么是Havingworkingforalongtime.
2020-11-12 163次 反馈错误 加入收藏 正确率 : 100%
题目内容：
After working for a long time,.但为什么是Having working for a long time.
优质解答
没有Having working for a long time.
只有以下两个：
Having worked for a long time.
Having been working for a long time.
这种用动名词开头的句子很多的.
本题链接：
