is this your brother?如何回答?

is this your brother?如何回答? Is this boy your brother作回答 Is this your brother?(做否定回答) Is this your brother? is this your brother 回答 yes,it is is this your brother?的回答与is this girl your sister?的回答的区别 Is this boy your brother?(做肯定回答) Is this your brother和Is this your sister的回答, He is your brother .如何变一般疑问句?并回答? Is Jim your brother?回答 Is that your brother?回答 为什么Is this your brother?回答是yes,it is 不是yes he is.