they are picking up apples的问句是什么“士别三日，当刮目相看”是谁对谁说的
问题描述：
they are picking up apples的问句是什么
“士别三日，当刮目相看”是谁对谁说的
答
be动词提前。
Are they picking apples？
还有就是对划线部分提问，就要具体看线画在哪了，然后根据线来提问
答
要是
What are they doing?
Are they picking up apples?
答
what are they doning?
what are they picking up?
答
Are they picking up anpples？are提到句首
答
what are they doing?
Are they picking up apples?
补充：吕蒙对鲁肃说的