has been doing与had been doing,这两个时态分别代表怎样的概念,表示怎样的动作发生,用于何种情
答案:1 悬赏:40 手机版
解决时间 2021-06-09 07:03
- 提问者网友：雪舞兮
- 2021-06-08 12:12
has been doing与had been doing,这两个时态分别代表怎样的概念,表示怎样的动作发生,用于何种情况,请大家分别具体解释一下它们所用的场合
最佳答案
- 五星知识达人网友：拜訪者
- 2021-06-08 13:24
has been doing表示动作到现在为止一直在做
I have been waiting for you for an hour.
had been doing表示动作到过去某一时刻为止一直在做
I had been waiting for you for an hour until you finally reached.
我要举报
如以上问答信息为低俗、色情、不良、暴力、侵权、涉及违法等信息，可以点下面链接进行举报！
大家都在看
推荐资讯