there is a cat中there作什么语啊?还有that is a cat中的that做什么语?

there is a cat中there作什么语啊?还有that is a cat中的that做什么语? there is a cat is over a there that cat .连词成句 Look There is a cat ( ) the door There is a cat under the chair. There( )(is/are)a cat and ( Is there a cat ____the door there is a ball under the desk. these is a cat on the什么意思? what（ ）that over there?Ithink it（ ）a cat 括号内加什么 Is that being a cat中为什么要用being Is there a cat over there -Yes,——cat is black and white.Aa B 这一句如何理解?there is a reason for everything that happens在句子中做什么