Jim and Mary are brother and sister
问题描述:
Jim and Mary are brother and sister
怎么说就是对的?那么 Jim and Mary are brothers and sisters
哪一个是对的,哪一个是错的,要求最好有出处,有根据.
答
Jim and Mary are brother and sister.是对的.另一个是错的.原因是他们两个中只有一个brother,一个sister,所以要用单数如果说Jim,John,Mary and Lucy are brothers and sisters 这就是对的反过来 Jim,John,Mary and ...