分词作伴随状语
The afternoon passed very pleasantly,roller-skating(滑旱冰）in the sun and talking about our childhood under a tree.这个句子中,我觉得不应该用roller-skating和talking,而应该用roller-skated和talked,因为时间是作为这个句子的主语,roller-skate和talk的动作应该是人来执行,故应该用过去分词来表示被动,