He was nowhere to be seen.为什么要用不定式

He was nowhere to be seen.为什么要用不定式 he was nowhere to be seen. but it's nowhere to be seen.其中为什么用be? Luckily,Ugly Naked Guy is nowhere to be seen.] 1.-Henry doesn't seen to be what he was. 英语练习题1道 急He was never seen to be late again中see明明没有加to为什么这里要 He was seen to go into the room 这里为什么SEEN后加TO 老师说带to的动词不定式主动表被动,可我在英语书上找到了这样一个句子She was nowhere to be foun He has nowhere to live.这个句中nowhere为副词,动词不定式to live在这里作什么成份? The question is easy to answer可以用 为什么They are nowhere to be He was seen to cross the street. Why was the driver fined?He happened to be seen taking the w