1.He put his bag_____ it was just now A.where B.when C.that D.after 2.In_____Lu Xun passes away in____.a.the thirties,his fifties b.his thirties,the fiftiesc.the thirties,the fifties d.his thirties,his fifties答案是a，可是这句话什么意思，我没太看懂。3.Many people_____to see come police running here and there.a.surprised b.who are surprised c.were surprised d.who were surprised答案是c，可b/d为什么不对呢？4.There were so many people in the street______that fire fights couldn't get close to the building.a.to watch b.watched c.watching d.watch这种题，已经遇到很多次了，可每次都不太明白，答案是c,为什么呢？谢谢你们了，感激不尽……

新概念的问题都是很模糊的,我也不是太清楚~吧内有高人在吗?P.S建议去百度知道问下~

1A where引导的地点壮语从句２Ａ　In　the thirties　翻译为”在３０年代”　　　in　one's　fifties　翻译为”在某人５０多岁时”３没太看懂　不知道楼主题打错没　姑且认为是Ｃ　选择ＢＤ话　则句中无谓语动词啊４Ｃ现在分词做定语　没什么好说的