I have been busy yesterday afternoon为什么要用have been busy而不用have busy
I have been busy yesterday afternoon为什么要用have been busy而不用have busy
主要想问的是什么时候现在完成时里动词前要用been,也就是have been ...
例如还有 ：She has been sick since last month.
主要想问的是什么时候现在完成时里动词前要用been,也就是have been ...
例如还有 ：She has been sick since last month.
英语人气：542 ℃时间：2019-08-19 05:12:14
优质解答
busy是形容词,你想想i am busy .那been 对应的am ,好好琢磨下
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