【題目】He promised _____ back in a few minutes.

A．to ring B．ringing C．rang D．to be ringing

【答案】A

【解析】

試題分析：考查固定短語。promise+to do sth.為固定短語，意為答應干某事，句意：他答應幾分鐘后打電話來。故選A

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