HSK V5
Correct

所在

/ suǒzài / 
Strokes

Definition

place/location/(after a noun) place where it is located

Example

As a Noun
place; location
1
Xúnzhǎo
寻找
shūshì
舒适
de
的
suǒzài
所在
jūzhù
居住

look for a comfortable place to live in

As a Noun
place where sth is found/seen
2
Zhè
这
jiùshì
就是
wèntí
问题
suǒzài
所在
  
。

This is the crux of the problem.

3
Zhè
这
jiùshì
就是
yàohài
要害
suǒzài
所在
  
。

Here lies the point.

4
Suǒzài
所在
dānwèi
单位

one's workplace; work unit

5
Bìngyīn
病因
suǒzài
所在

cause of the disease