There is _ apple on the table ._ apple is for my brother.和an,后面一个空为什么不用the?

There is _ apple on the table ._ apple is for my brother.和an,后面一个空为什么不用the? There is an apple on the the boy is _(put)the apple on his finger. there is not an apple on the desk 的同义句There isn't an apple on the desk.（填一词）There is -------------------------apple on the desk. there is an apple on the table 改为复数形式 There is an apple on the tree.(改为复数） is there an apple on the table?否定回答 is there an apple on the table.否定句 There is an apple on the table.否定句 There is()orange and ()apple on the desk. Is there a apple on the table哪里有错误 there is an apple on the desk同义句. There is only an apple on the table 改同义句 There is __ __ an apple on the There is only an apple on the table.There is ____ ___ an apple on teh table. There is an apple tree_ _ _ the house.填介词短语 there is an apple on the table.it is yours there is an apple ____ _____on the table There are few apples on the tree还是There is few apple on the tree There is an apple on the desk改为--- --- --- --- there on the desk