急,There are many old balls under the chairs 改单数句,后面的chairs要改单数伐?

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急,There are many old balls under the chairs 改单数句,后面的chairs要改单数伐?
急,There are many old balls under the chairs 改单数句,后面的chairs要改单数伐?

急,There are many old balls under the chairs 改单数句,后面的chairs要改单数伐?
应改为:
There is an old ball under the chair.

随便
不改就是在很多椅子下面
改就是在一个椅子下面

There is an old ball under the chair.

There is an old ball under the chair.