as only “he” is able to be or to do anything.
Since we’re talking about being grammar Nazis.
Another nit: "CIA’ and "ISI’ are initalizations, not acronyms or abbreviations. An abbreviation is “co.,” “ltd.,” etc.
Sentences with “to be” conjugations are considered sentences of identity, wherein the object is actually the subject also. There is identity of the subject and object. Hence, the “object” is really the subject and requires the subjective case.
Merriam-Webster defines abbreviation as “a shortened form of a written word or phrase used in place of the whole.” So, CIA and ISI are abbreviations.
Initializations are a subset of abbreviations, and acronyms are a subset of initializations.
I’m going to assume that this is the geeky explanation that backs me up.
It’s exactly this kind of explanation that I could never have gotten away with in tutoring, so I never learned it.
What Walloon said.