284.
M: Hello, King here.
W: Hello. This is Mara White here.
M: Oh, hello, Mara.
W: I'm afraid I can't go to work today, Mr. King.
M: Oh, what's the problem?
W: I've got a terrible headache.
M: Yes, you sound ill on the phone.
W: Yes, I'm afraid I have to stay in bed today. Maybe I'll be able to work tomorrow.
M: That's all right, Mara. Have a good rest until you feel well enough to come back to work.
W: Thank you, Mr. King. Goodbye.
M: Goodbye, Mara.

答案解析：
(1) 正确答案为C。根据I'm afraid I can't go to work today, Mr. King. 金先生，恐怕我今天没法去上班了。可知，女子在向上司请假，因此二人为老板和雇员的关系，C项正确。
(2) 正确答案为C。根据I've got a terrible headache.我头疼得厉害。可知，女子不能去上班的原因是因为她头疼，她不舒服，因此C项正确。