Question

Select the five grammatical structures in which nominative case pronouns should be used.

a. object of a preposition
b. predicate noun
c. predicate adjective
d. appositive to any noun
e. subject of a sentence or clause
f. subject of an understood verb in a clause beginning with as or than
g. appositive to a noun acting as a subject or predicate noun
h. indirect object
i. following the infinitive to be when to be has no expressed subject