题目内容：
提示：Wilson太太的丈夫生病了，发烧，头疼的厉害。她打电话给格林医生，请他到家里来一趟。格林医生简单询问情况后，答应马上就到。
Mrs. Wilson: Hello, this is Alice. Is Dr. Green there?
Dr. Green : Yes, 51 .
Mrs. Wilson : Dr. Green, sorry to call you up at this time of the day. But my husband is very sick. I am rather worried. 52 ？
Dr. Green: Yes, certainly. 53 ？ It will help me to decide what to prepare
before I come.
Mrs. Wilson: Well, I can′ t tell exactly, but 54 .
Dr. Green : All right then. Don′ t worry. Keep him in bed. 55 .
Mrs. Wilson : I′ 11 do that, Dr. Green. See you soon.
Dr. Green : See you.
第（52）题答案
答案解析：