have been doing - 柯帕斯英语网

have been doing

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3回答

1735浏览

现在完成时态的用法

IRIS 2021-04-23 15:57:31

1回答

8266浏览

想问问老师have been doing 和have always done都表示"一直"的意思，但是学生想知道得详细一些。

YanhuaPeng 2021-02-06 17:59:38

1回答

2463浏览

What have you done since then? 和 What have you been doing since then?的区别

Fly 2021-01-27 15:30:34