[In / Of / By] reality, all the recent business and political scandals have eroded people's trust in these professions.
IN
From what I can [learn / gather / get], nurses are extremely trustworthy. They were voted the most trusted professionals from 2004 to 2008 in the US.
GATHER
As far as I am [opinionated / concern / concerned], postal workers are the post trustworthy profession
CONCERNED
If you [tell / inquire / ask] me, librarians are the most trustworthy people; they have no reason to lie.
ASK
To my [knowledge / view / opinion], there are no professions that are 'squeaky clean'; all of them have 'bad apples'.
KNOWLEDGE
If you want me [truest / honest / perfect] opinion, I'd say trust nobody, ever.
HONEST