现在完成时:
I have finished my homework.
She has been to Beijing.
We have talked for a long time.
一般现在时:
I am playing computer games.
He is reading.
They are singing.
现在完成时:
I have finished my homework.
She has been to Beijing.
We have talked for a long time.
一般现在时:
I am playing computer games.
He is reading.
They are singing.