Correct

管事

/ guǎn shì / 
Strokes

Example

As a Verb

look after affairs; run affairs; be in charge

1
Zhèlǐ
这里
shuí
谁
guǎnshì
管事
  
?

Who's in charge here?

As an Adjective

useful; effective; efficacious

2
Zhèzhǒng
这种
yào
药
hěn
很
guǎnshì
管事
  
,
yī
一
chī
吃
jiù
就
jiànxiào
见效
  
。

This medicine has an immediate effect.

3
Zhèzhǒng
这种
yào
药
bìngrén
病人
chī
吃
le
了
guǎnshì
管事
ma
吗
  
?

Will the patient benefit from this drug?

4
Bùguǎn
不管
shì
事

be of no effect; not work

As a Noun

butler/steward (in a family or business)

5
Nǚ
女
guǎnshì
管事

stewardess