He left the key he had been an hour before. A．what B．that C．where D．which
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He left the key ______ he had been an hour before.
A．what B．that C．where D．which
试题答案
【答案】
C
【解析】
试题
He left the key ______ he had been an hour before.
A．what B．that C．where D．which
【答案】
C
【解析】
试题