Is that Tom?yes it is.有么有什么情况用 yes he is

Is that Tom?yes it is.有么有什么情况用 yes he is 什么情况下用“Yes,it is.” 什么情况下用"Yes,he(she)is." Is Tom your father?回答是用Yes,it is.还是Yes,he is. Is that your headmaster?用Yes,he is.回答还是Yes,it is. 什么情况用Yes,he is.什么情况用Yes,he isn't. (Is) Tom (your friend)?(Yes),(it is) . Is that his brother?A.Yes,he is.B.Yes,it is. Is that Li Lei?做肯定回答是Yes,it is.还是Yes,he is. Is that your estate Yes,it is Is that Mary speaking?Yes ,it is is this your broter 用Yes,it is .还是Yes,he is.书本上的是Yes,it is.但 "is tom about ready?" "yes.he's -------?"