a matter of concern
all things being equal
as a last resort
attached hereto
by no means
conspicuous by its absence
easier said than done
enclosed herewith
if and when
in reference to
in short supply
in the foreseeable future
in the long run
in the matter of
it stands to reason
many and diverse
on the right track
par for the course
please feel free to
pursuant to your request
regarding the matter of
slowly but surely
this will acknowledge
we are pleased to advice
we regret to inform you
we wish to state
you are hereby advised that
