Are their teachers old?答NO,they are not.答句中是用they还是their

Are their teachers old?答NO,they are not.答句中是用they还是their They are not ( ) for their are these （their） tickets为啥填their NO,they are not （their）为啥填 Are those apple?No,[they these their] are they { }their homework? they are saying goodbay to their teachers是什么意思? They are not ( ) while they do their homework. Do they have any old photos in their room 写出同义句 There are no 连词成句prices,they,are not,their,high,are They are very happy______(see)their old friends.为什么 They are angry . their friends. Are they saying( )( )( )their teacher?