Some researchers believe that there is no doubt a cure for AIDS will be found. A. which B. that C. what D. whether 题目和参考答案——青夏教育精英家教网—

题目内容

Some researchers believe that there is no doubt___ a cure for AIDS will be found.

A. which B. that C. what D. whether

解析:

本题考查同位语从句的引导词。题意为：一些研究人员认为，人们一定会找到治疗艾滋病的方法的。Doubt后接同位语从句时，如用于肯定句中，要用whether引导；如用于否定句中则用that引导。

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