tere aren't a_____ birds flying in the sky

tere aren't a_____ birds flying in the sky There aren't a_____ volleyballs on the floor. I__think they__clever.A.don’t,are B./,aren’t C.Don’t,aren’t aren't those are your books ,_____?a aren't you b aren't they c aren't these d aren't those Their parents ( )at work A.aren't B.don't You___about the future now,___you?A.don`t think,don`t B.aren`t thinking,aren`t C.don`t think,doD.aren`t thinking,are Tere was onlY a slide.Tere wasn t a pond here before! There aren't any pens in the bag,______?A.are there B.aren't there C.are they D.aren't they Mary and Linda___here now.A.aren't B.don't C.isn't D.doesn't He______a teacher?A,don't B,doesn't C,isn't D,aren't are these your english books A.yes ,it is B.no ,we aren't C.no ,they aren't. There aren,t enough time for me 将错误的一项填入括号中 A.There B.aren,t Cfor They are walking,______ ______?( ) A.are they B.aren't they C.are there D.aren't there there ____books on the desk.A is B aren't有人问我为什么用aren't Are there any desks in your classroom?---No,____.A.they aren't B.there aren't 1.Are their book on the desk?No _ A.their aren't B.they aren't Aren't you lucky!