M: Maths Department, Doctor Webster (76)s        .

W: Hello , Professor Webster, this is Janet Wang calling . I’m living two doors (77)f         Your teaching assistant, Ken Williams , Ken asked me to call you (78)b      he has lost his voice and can’t talk to you (79)h     .

M: Lost his voice ? Oh, what a (80)s       ! Is there anything I can do for you ?

W: Well , Ken has a class this afternoon from two thirty to four and he won’t be able to teach it , but he doesn’t want to (81)c        it either.

M: Want me to try to find somebody else to teach the class ?

W: No , not (82)e         . What he wants to do is to get someone to go in for him, just to pass back the mid-term exam papers. He’s already (83) m       them and they are on the desk in his office. The whole thing wouldn’t take more than ten minutes.

M: His class (84)b        at two thirty, eh ? Well, I’m afraid at that time I’ll be on (85)c      anyway, so I can do it for him .

W: Thank you very much , Professor Webster.