a table has four legs.（用there be结构改造句子）

网友回答

there are four legs of a table.
======以下答案可供参考======
供参考答案1:
there are four legs 介词 a table.主要是介词用哪个，in on 或者with
供参考答案2:
There is a table that has four legs.（不知道对不对）