( )these( ) ( No,( ) not ( ).( ) ( )are they?They're ( ).括号里

( )these( ) ( No,( ) not ( ).( ) ( )are they?They're ( ).括号里 Are these your teachers' book?No,they're not .____books are Are these your pens?No,they're not.our pens are blue. Are these CDs______? No,they are not mine. They Are these your books?yes,they are.\No,they aren't they're he Are these bags heavy?No,they ' re _____. are these pants yours?no,they're theirs. ——Are these books___? ——No,they are not mine.They Are these books＿＿?No,they are not mine.They blong to＿.A your whose books are these?They're t______ -Are these coats_____ -Yes,they're ours. --What are these?--They're watchs.改错