问题描述：
帮忙解释下这句英语时态
the old man would sit on a bench in the quiet park and look at others for hours without doing anything or talking to anybody.
这句是个一般过去时,表示过去习惯性动作.请问.那个without doing anything or talking to anybody.为什么要加ing是现在进去时么?
the old man would sit on a bench in the quiet park and look at others for hours without doing anything or talking to anybody.
这句是个一般过去时,表示过去习惯性动作.请问.那个without doing anything or talking to anybody.为什么要加ing是现在进去时么?
问题解答：
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