they live in a place that many people from Singapore do not know exists.

问题描述:

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?

that 引导定语从句修饰place,that指代place.从句还原为:many people(主语) from Singapore(后置定语) do not know(谓语) (that=the place) exists(宾语从句).the place exists是宾语从句,在从句中做know的...