Consumer confidence plummeted a breathtaking 15 points, to its lowest level in ten years.The cable just snapped. The elevator plummeted ten flights.Stock prices plummeted 40 percent during the scandal.plummet是不及物动词，为什么后面有宾语？这里是名词作状语吗？
Shy and negative, I am unconfident to join any activities during that time.句中，形容词（表语）Shy and negative用逗号隔开，属于什么用法？这种用法有没有限制？即多个形容词（表语）的话，是否都可以将部分形容词（表语）用逗号隔开。
... It was believed that the accident happened as an indirect result of heavy rain and snow storms in the city.(朗文) Cleveland police said it was believed an electrical fault started the fire in a ground-floor flat.(朗文) 问: 这里的happened与started是发生在was believed...
...间或地点的副词很多都可以用作表语，如：
The best time to do it is now. 现在是做这事的最佳时机。
He is away on holiday at present. 他现在正在休假，不在这里。
My room is upstairs. 我的房间在楼上。
请问副词soon可以用作表语吗？
He attack nations willing and eager for American taxpayers to assume the growing security burden.这段话书上翻译是：他抨击一些国家愿意并渴望由美纳税人承担负担。这不是把willing...理解成宾补了吗？我觉得应该翻译成：他抨击一些愿意并渴望...的...
Students move more progressively from understanding less to understanding more— understanding better what they already know and appreciate more what they already have experienced.老师好，请问appreciate more 中more理解成副词还是形容词？