用is,.are,this,these,it,they,isn′t,aren′t 填空 1.___ ___your bo

用is,.are,this,these,it,they,isn′t,aren′t 填空 1.___ ___your bo 用英语适当形式填空：Are these rulers ours?No,they aren't.They are ___( （用is ,isn't ,are ,aren't 填空 用is 或 isn't ,are或aren't 填空 用am/are/is/am not/isn't/aren't 填空:There _____any rulers on t 用 “ .”“your”“table”“this”“are”“is”“yes”“aren't”“,”“they”“?” 选择并用其适当形式填空：aren it,are,is,isn it,am,these,this,not.( )she M 用am/are/is/am not/isn't/aren't 填空：Your cousin_______ a cute 用am / are /is/am not /isn't/aren't 填空：The and I _____friends 用There is（isn't） 或 There are （aren't）填空 用am/are/is/am not/isn't/aren't 填空:____there any fish in the 用am/are/is/am not/isn't/aren't 填空:____it an Engish book?