问题
选择题
Polly said that he did everything ______ she could to comfort his sister who cried after being refused by Harvard.
A．what
B．which
C．when
D．that
答案
答案：D
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Polly said that he did everything ______ she could to comfort his sister who cried after being refused by Harvard.
A．what
B．which
C．when
D．that
答案：D