[单选题]Directions: In this part there is a sentence with four choices marked A, B, C and D. Choose the one that best completes the sentence.It is generally believed that communication skills are becoming ( ) it takes to be a good doctor. 

A

that

B

what

C

whether

D

how

正确答案:B
题目解析

分析句子可知are becoming后面的部分作它的表语,在表语从句中,takes缺少宾语,结合句意可以确定选择表示“什么;......的东西”来引导最合适,故选B。that在从句中不作成分,whether表示是否,how表示怎样,均不符合句意,故排除。
句意:人们普遍认为,沟通技巧正逐渐成一名好医生的必备条件。

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