楼主,killersheng 是错的!【those的意思是那些,所以those的单数形式是that(那个),而不是this(这个)】所以【Those photos are on the wall.改为单数形式】的正确答案是【That photo is on the wall.】【They are my parents.改为同义句】的正确答案是【They are my father and mother.他们是我的爸爸妈妈】或【Both of them are my parents.这两位都是我的家长】,不过前者更好。而“Those people are my parents”的意思是“那些人是我的家长”,这是中式英文!【欢迎追问,望采...