—Hello! Could I speak to Mr. Liu, please?

—Hello,may I speak to Mr Liu,please? hello,could I speak to Don please? ——Hello!May I speak to Mr Smith,please? -----Could I speak to Mr Smith, please? -Could I speak to Mr Green,please? Could I speak to Mr.White,please?” —__________ . M:Hello.May I speak to Mr Smith,please? A;Hello!Could I speak to Bob ,please? 口语题:---Hello,could I speak to Jane please? —Hello, this is Lily speaking.Could I speak to Mr. Black? — Hello, this is Lily speaking. Could I speak to Mr. Black? ——Hello. May I speak to Mr. Wang, please? —— _______.