Are these your trousers?

Are these your trousers? ----Whose trousers are these? Are these your ______ trousers?No,they aren't ______. Are these your trousers?Yes,these are.怎么修改错误的句子? Are these your trousers?Yes,these are.这句话哪里错了? What are these trousers made_____? Are these your trousers?—Yes,___.A.it is B.they are C.they'r these trousers are ____. a.my b.your c.her d.his These are (trousers)括号部分提问 these are my trousers(对my提问) These white trousers are my brother's These are( )( )( ) whi These are Jim's trousers.____trousers are these?