James is busy practising for the school concert.They have fun riding with their friends.这里的practising, riding都是分词形式(没有介词,不是介词+V-ing形式),在句中和前面内容的连接感觉不是很紧密,这里的成分应如何分析?这种分词的内容可以...
So mutually dependent are we that on our swift and full communication
with one another is staked the success of almost every scheme we form.麻烦帮忙分析句子结构!谢谢!