"They are sister and brother"sister and brother为什么不用复数?

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/05/19 04:47:22

If there is one brother and one sister,
I would say: They are brother and sister.
再问：为什么sister and brother不用复数？
再答：会读吗？不会的话我翻译下吧 If there is one brother and one sister, 如果只有一个brother和一个sister I would say: They are brother and sister. 我就会说： They are brother and sister. 不会再问吧

"They are sister and brother"sister and brother为什么不用复数? Are they sister and brother? They are his sister and brother.把his sister and brother提问 tom and linda are brother and sister.they live Jim and Mary are brother and sister jenny and alan are sister and brother They are my parents,my sister,my brother and I. 英语翻译可否回答为They are brother and sister. 改错-Is your brother and sister workers? Yes,they are 改错-is your brother and sister workers?yes,they are brother and sister they aren‘t brother and sister,（）填反意疑问句为什么是are there 还是are