提示：Peter给Johnson教授打电话请病假，接电话的是教授的助手Sally。

( Peter = P; Sally = S)

P: Hello! This is Peter speaking. 51 ,please?

S: I'm sorry. Professor Johnson is not here at the moment. This is his assistant,Sally. 52 ? P: Yes. Please tell the professor that I'd like to ask for sick leave for tomorrow.

S: Sorry to hear that. May I ask 53 with you?

P: I'm running a fever. I've caught a cold.

S: Oh, 54 ?

P: No, not very serious, but the doctor told me to stay in bed and have a good rest.

S: I see. I'll 55 as soon as he comes back.

P : Thank you. Goodbye !

S: Bye!

第(53)题