海南三亚天涯海角，天涯是清朝雍正时涯州知州的哪位古人所提，海角是清末文人续刻？
参考答案：海南三亚天涯海角，天涯是清朝雍正时涯州知州程哲所提。
—Alice looks blue today.
—Yes，I asked her，but she wouldn't say ______ troubled her.
A．why was it that
B．that was why
C．it was what
D．what it was that
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