A boy was sleeping when his mother got up him 或者he was on the point of sleeping when his mother got up him 或者he was about to sleep when his mother got up him
英语翻译：男孩正在睡觉,这时他妈妈叫他起床（when)
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A boy was sleeping when his mother got up him 或者he was on the point of sleeping when his mother got up him 或者he was about to sleep when his mother got up him