Formal and Informal Speech
When I get home from work, I do not open the door and say "It's I." Like most people, I say, "It's me." "It's me" is informal, colloquial language. But in formal writing, I use "It's I." We adjust our language to our audience and purpose. In formal speaking and writing, a predicate noun is equal to the subject -- in person, number, and case. Thus, in formal language, pronouns used as predicate nouns should usually be the same as those used as subjects.
1. Those children are they.
Part 2. Write a predicate pronoun in place of each predicate noun.
1. It is Josephine.
Part 3. Write the following sentences, filling in each blank with a predicate pronoun.
1. The best players were Andrew and ____________.