71.  -R: Sit down, please.

72.  -R: People nowadays like to talk about computer.

73.  -R: I see.

74.  -R: I also know that your project will cost a lot of money.

75.  -R: Thank you for the interview.

76.  -R: Goodbye.

77.  R : the reporter M : Marc Levoy\

78.  R : I hear that you're working on a big project.

79.  R : But why is the project necessary?