Is that Mary speaking?Yes ,it is

Is that Mary speaking?Yes ,it is Hello.Is that Mary speaking? 当别人问你:Is that Mary speaking?应该回答Yes, Hello,is that Mary?Sorry,___Lusy speaking. 很简单的英语问答题Is that Mary speaking?A.Yes,I'm Mary.B.No,I'm her d hello it is jack speaking?yes （ ） Is that Mary?Yes,she is. Is that jim speaking?回答要不要Yes或NO?回答怎么说?是不是This is it 英语中电话用语is that speaking?回答是 yes,it is 还是she is 或者he is?this this is Mary speaking和it is Mary speaking这两种电话用语的区别 Hello,is that Mr.Black speaking?Yes,who's that? is that mrs green speaking?A:Yes,speaking B Yes,please 啥意思?怎