问题描述：
英语句子中,逗号后面什么时候用ing形式,什么时候用ed形式?
比如I walked out of the cinema,(determined) to return to see the wonderful film next Sunday 和 It rained for two weeks completely,(ruining) all the crops in the fields.逗号后面的形式为什么不同?
比如I walked out of the cinema,(determined) to return to see the wonderful film next Sunday 和 It rained for two weeks completely,(ruining) all the crops in the fields.逗号后面的形式为什么不同?
问题解答：
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