they live in a place that many people from Singapore do not know exists.that 引导什么从句?know --exists ,exist 只有动词的词性,这个为什么在know后面?

Chinese people in America live in a place. They call the place Chinatown合并 a place to live 还是 a place to live in They know they have tofind a warm place to live in f__the winter It is a good place live in. a pace to live 还是a place to live in a place to live+in?请问a place to live和a place to live in哪个对啊? they live in a beautiful They are unhappy to live in the noise place.they've d___to move to another place. a beautiful place to live还是to live in? They have just found a place to live in为什么要加in?什么时候要加什么时候不要加 They hop they can have a wonderful place to live的同义句They_________ ___________have a wonderful place to live. It's a place to live 和It's a place to live in哪个正确? A good place to liveora good place to live in They live in a n_____ hotel. they live in a place____ gum tree they live in a place____ gum tree where do your parents_____?they ___ beijing?请给详细的解析,a.live in;live in b.live ;live c.live ;live in d.live in;live A ________ is the place to live in space