______ the sound on the step, the boy rushed out to see if his mother had come back. A．To hear B．Hea...
2022-12-16 08:32:36 191次 2014届北京市高二下学期期中考试英语试卷（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
______ the sound on the step, the boy rushed out to
see if his mother had come back.
A．To hear B．Hearing C．Heard D．Hear
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