this is sam speaking.are you jack哪有错

this is sam speaking.are you jack哪有错 今天就要!This is Jack speaking.Are you Tom?（ this is划线；are you划线 this is Jack speaking 英语翻译HI,this is Jack speaking.为什么要加speaking? MARIA:Hello,May i speak to SAM SAM:This is SAM Speaking( ) M Hi ______?----This is jack A.Who are you B.Are you Jack C.Sp -is that Jack speaking 用英语填对话.hello!this () speaking hi,tom!this is ben () are you Hello,______Nancy speaking?A.are you B.is that C.is this hi sam .this is ____.what are you doing?I am talking for you Hello,___Bob?-------No,this is Sam. A.are you. B.is that. C. 1.hello!this is Jenny speaking.who are you?2.by the time i g