the cat is under the table 是主系表还是主谓宾,请说明一下理由,

There is a cat under the chair. the,black,bed,cat,under,is,the 连词成句 There is a cat under the chair.The cat is black My cat is (under the desk).(划线提问) cat,under,is,your,chair,the(.)连词成句 There is a cat under the tree.变否定句 there is a black cat under the table.提问 Is there a cat ______(under,behind,in)the door? There(is/are)a cat under the chair选一个 a cat is under the chair and some shoes are under the bed的意思 Whats under the sofa?A.This is a cat under itB.There is a cat under itC.There are a cat under itD.It's a cat under it the cat is (under the chair)(对括号部分提问） —— ——the cat ---_____ ______ ______ on the chair?---No,it isn't.The cat is under the desk. there is a ball under the desk. these is a cat on the什么意思? the cat is under the desk这个句型为什么有is The cat under the sofa is Lily's.(就划线部分提问）划线部分：under the sofa 对括号部分提问 1.The cat is ( under the tree ) the cat is (under the table).对括号中的部分提问