1.the internet
2 online catalogue (or less often card catalog) usually found on a PC and the front of the library
3 Author's name, title and call number
4 A number that indicates a books category and where to locate it in the library
5 the Dewey Decimal System on the library of Cosngress system
C. The nature of monstrosity and the cause of loneliness
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 ?
End is the antonym for begin
