题目内容：
通读下面的短文，回答题。 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51题 ________
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