单选He had ______ for _______ two hours.A.a walk;another B.walk;other C.a walking;more D.walking;another请详细说明原因
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题目内容:
单选
He had ______ for _______ two hours.
A.a walk;another B.walk;other C.a walking;more D.walking;another
请详细说明原因
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