"What are Tom's father and mother?还是到底就不是一个句子?

"What are Tom's father and mother?还是到底就不是一个句子? what are Nancy's father and mother 1.Tom's father and mother are doctor.(改为一般疑问句) （ ）Tom's fath "What are Nancy's father znd mother? Your mother’s father and mother are your g____. My mother's father and mother are my-------- Tom is my father and he is my mother's( ) 英语语法father and mother's还是father's and mother's （Helen's father and mother) are workers.对划线句子提问 they are my father mother and i 还是they are my father mother There are her mother,her father ,and she.最后一个用she还是用her? what do Kate;s mother and father do?