The door is open.Who has opened(open)it?Sorry,I don't know.为什么用一般现在

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The door is open.Who has opened(open)it?Sorry,I don't know.为什么用一般现在
The door is open.Who has opened(open)it?Sorry,I don't know.为什么用一般现在

The door is open.Who has opened(open)it?Sorry,I don't know.为什么用一般现在
has opened 是现在完成时,不是一般现在时.现在完成时表示过去的动作对现在造成了影响.

is open 表示现在的状态
has opened 属于完成时态 表示过去发生的动作对现在造成的影响和结果。

have lost 跟现在有关系,用have lost had lost是在过去的某时间点达到了某件事 D Blose D lost 因为一般过去时表示过去发生的事情 have lost