—Hello, may I speak to Mr Green, please?

——Hello!May I speak to Mr Smith,please? —Hello,may I speak to Mr Liu,please? M:Hello.May I speak to Mr Smith,please? ——Hello. May I speak to Mr. Wang, please? —— _______. —Hello. May I speak to Mr. Wang? —Who’s calling, please.&nbs ——Hello. May I speak to Mr. Wang, please?   & Hello!May I speak to Mr Wu? Hello,may I speak to Mr.Smith? Hello.May i speak to bill,please? —Hello, May I speak to Don, please? —________________? -Could I speak to Mr Green,please? 第三部分：对话填空：W: Hello. May I speak to Mr. Johnson, please?Ｍ: Sp