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What is she doing?
What is he doing?
Is he doing his homework?
No, he isn’t.
What is she doing?
She is singing under the tree.
What are they doing?
They are running.
Who are they?
Who are they ?
He is
playing the piano.
What is he doing?
What are they doing?
They are
playing chess。
Who are they?
What are
they doing?
They are running.
What are they doing?
They are playing pingpong.
*一般现在时
*现在进行时
语 法
一般现在时：
含义：表示经常的状态、或动作。
标志词有：
肯定句：
主语＋is/am/are＋其它成分.