Question

After ten hour,s drive,they finally reached【 】theythought was the piace they had dreaming of。

空里为什么填what,不能填that??求解释

Answer 1

they have dream of sth ,这里的that 不能指代任何东西, 而what 有 所....的意思 ..这里是说,所梦想的地方 如果用that
应该是 they finally reached a place that they thought was the piace they had dreaming of 这里的that就是引导定语从句来修饰 a place 了
而原句用的是what来引导一个宾语从句 来做reach的宾语...希望采纳,O(∩_∩)O~

Answer 2

reach后面是宾语部分，在宾语中what they thought 是主语，也就是一个主语从句。主语从句属于名词性从句。名词性从句中的that在句子中不做任何成分，只起引导句子的作用。而what在名词性从句中做主语，宾语，表语。本句中主语从句中缺少宾语，做thought的宾语。因此选what

Answer 3

what 在这儿作宾语，引导宾语从句 他们想的东西

如果用that，前面必须有先行词 例如 the apple that is delicious

Answer 4

what可以做名词性的成分，而that不能

Answer 5

they thought 在这里是插入语 what在这里引导了一个主语从句作reached的宾语