Hello,is that Mr.Black speaking?Yes,who's that?Hello,is that Mr.Black speaking?Yes,who's that?_____Mary.A.I'm B.that's C.this is

---hello,is this Mr.liu speaking?----(yes,who is that?that怎么理解 Hello,is that Mr.Black speaking?Yes,who's that?Hello,is that Mr.Black speaking?Yes,who's that?_____Mary.A.I'm B.that's C.this is Hello!Is that Mr Wang speaking?--Yes,____________?(AI' m speaking 对么B who' s that Cwho' s that Hello,Mr. 排序 Hello! Good morning, Mr Green. Good morning,Miss Black. This is Mr white. Hello! Mr White Hello!Is you Mr Green?哪里错了 Hello!Is that Mr.Wang speaking?Yes.___A.Who are you B.Who's this C.I am D.He is C:Hello!A:Hello!Is that Mr Wu? C:Yes.Who is it,please?A:This is Jack.my friend Emma can't find herpurse.Can you help her?把他们译成汉语 义卖,用英语怎么解释? that jumble sale is an activity that （bla...bla...?）?急~~~~谢谢各位~~~.好吧，我想表达的是：义卖是一场充满爱心、给贫困的孩子们上学机会的活动。再次感谢~~~~ Hello,is that Liu Tao?Yes,＿. hello who is that speaking什么意思 Hello,this is Jim.____ that? --- Hello,is that Jim ___?---Speaking. hello,is that Nancy?sorry,a_____number选择 Hello.can l____ _____ is that, please? Hello!Mr.Superboy是什么意思 Mary:hello,this is Mary.Mr white :hello,this Mr white peter's fatherMary:hello,this is Mary.Mr white :hello,this Mr white peter's fatherMary:Hello,may i speak to peter?Mr white :Sorry._______Mary:could you tell me when he'Il come back?Mr white :_____ hello,mr跟hello.sir的区别