are these pants yours?no,they're theirs.

are these pants yours?no,they're theirs. ( )these( ) ( No,( ) not ( ).( ) ( )are they?They're ( ).括号里 Are these ---- a.yours books b.books theirs Are these bags heavy?No,they ' re _____. 英文题- what ()these keys?Are they yours?- no,they aren`t.They Are these your books?yes,they are.\No,they aren't they're he -Are these kites yours?-Yes,they are. 中文意思：are these their suitcases?yes,they are theirs. __pants are they?They're Wendy's pants Are these your teachers' book?No,they're not .____books are Are these your pens?No,they're not.our pens are blue. A:What__these?B:These are my pants.B:What___are they?