A、He’s explaining the language laboratory. B、He wants to know Where the tapes are. C、He’s showing her a new tape recorder. D、He’

W: Hello, professor Dennis, my name is Susan Adams. I read in university newspaper that you are looking for a student to work as a language laboratory assistant.
M: Yes, we are. Are you interested in the job?
W: I think so,but before I apply I’d like you to tell me more about the work.
M: Have you worked with tape recorders before?
W: I used cassette recorders a lot when I studied French at high school.
M: Good. There are many different kinds of language labs. Ours is a small one and it’s fairly easy to operate. This is the main control panel. You can set the controls to allow students to listen to the lessons they want to hear.
W: I see. what are these?
M: They are the system operates. Most of the lessons are on cassette tapes, but some of them are also kept in order on the shelves and they are clearly marked with the language and lesson number. For example, the cassettes in the green boxes are French lessons. Records and long tapes are over there.
W: How many hours would I work?
M: We need ten hours a week, Monday through Friday from 4 to 6 p. m. that’s one of the busiest times for this laboratory.
W:  I’ll fill in the application form for the job right now. It would fit in my class schedule nicely.
M: Fine, I’ll get back to you in a week or two after we review the applications.