A、A retailer. B、An electrician. C、A salesman. D、An operator. B对话中，男士在电话中说他的取暖器坏了，而温度快降到零下了，问是否有人过去帮他修一下，女士说这是他们全年最忙的时候，她会叫工人在今天过

M: Your temperature is quite normal and there is nothing wrong with your heart or lungs.
W: Then, why do I have a heat occasionally? And get tired easily? I’m still worried about them.
Q: What on earth is wrong with the woman?

M: This is Mr. Johnson. My heater is not working and the temperature is going to get down below freezing. Could you come over and fix it?
W: This is our busiest time of the year but I’ll speak to one of our men about getting over there sometime today.
Q: Who has been called by Mr. Johnson to come over?