Correct

何在

/ hézài / 
Strokes

Definition

where?/what place?

Example

As a Verb

where

1
Yuányīn
原因
hézài
何在
  
?

What is the reason for it? / For what reason?

2
Wèntí
问题
hézài
何在
  
?

Wherein lies the problem?

3
Nǐ
你
jū
居
xīn
心
hézài
何在
  
?

What are you up to?