they are---preparation for the exam.填一个介词

They are they are Are they They are -------are they?they are --------(tomato) --Are they ( ) buuks?No,they are not .--They are ( ) buuks. They are green.They are long.They are g( ) b（ they are food.they are long.they are white.谜底 are they,do they 区别 Are they horses?They are__________ Are they ( )skating?Yes,they are. they are who they are.怎么翻译? where they are 和where are they They are not______school.They are _______home. They are () bikes .They are theirs Are they your f_______?yes,they are. They are happy.They are d_____ Who are they They are teachers.(改错