Kate is a girl and schneider is a boy
In colloquial English 'them" would be acceptable
In formal English 'they' is used accompanied by the corresponding auxilliary verb
So, you could also say Is everyone who works in this store as helpful as they are ?
Answer:
Run, Jabbering ( I could be wrong)
Explanation:
An active verb is a verb which explains what someone or something is doing or has done.
