40. Hello ,this is John Hall.Is Mr.Li in?

41.May I speak to Ms .green, please?

42. May I ask who is calling ,please?

43. Would you like to leave a message?

44. Can I take a message?

45.Operator,please put me through to the manager’s office.

46. Ok ,just a minute.

47. Please call 341-5581 extension 624 to contact me.

48. Hold on,please .(pause)I’m sorry. He’s not in his office.

49. Sorry , Sir ,the line is engaged .Could you try again later?