已知某地有某物 可以用there be句型There is a ball under the chair 则某地没有某物

已知某地有某物 可以用there be句型There is a ball under the chair 则某地没有某物 问一个英语语法我发现there be有可以不表示某地有某物的用法,那该怎样用呢?英语不好!看清楚！是 不 表示某地有某物 某地有某物的句型?某地有某物的句型怎么说? Is there a c__t under the chair There is a cat under the chair. Our classroom has four windows 刚才看到一道题有这么一句话,不是某地有某物要用there There(is/are)a cat under the chair under is chair baskball there a the?连词成句 under the teacher\'s table there is a ball Is there a ball under the desk?---______________________. Is there a ball under the desk?改错 under the tree , there is a brown ball