核心问题
Are you sure ____?
A. whether she is honest B. that she is honesty C. she is honest D. is she honest 我知道答案为 A, 但不知道 whether she is honest 与主句是个什么关系。
词典解答
应把 whether 从句看作是形容词补足语从句,请与 (glad) that 从句进行对比。下面是 wh-从句充当形容词补足语从句的实例 [参见 sure (glad) that]:
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I'm not sure which she prefers. 我不能肯定她喜欢哪一个。
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We're very glad (that) our daughter arrived there safely. 我们很高兴女儿平安到达那里。