The subject of the sentence is Ira, because she is the one the sentence is about. The predicate tells something about the subject, so in this case the predicate is "loves to reads books in summer".
The predicate is the rest of the sentence: loves to read books in summer.
Explanation:
When it comes to the English grammar, subject is what the sentence is about or who/what performs an action. In the sentence we are studying here, Ira is the subject since he performs the action of loving to read books in the summer.
A predicate is a structure that tells us something about the subject, what it is or what it does. In other words, the predicate of a sentence is everything else that is not a subject. In the sentence we are studying here, the predicate giving us information about the subject Ira is: loves to read books in summer.
A plot that is incomplete so viewers/audience will want to see the next thing. I.e at the end of a chapter you are about to find out whether a character dies but you don’t know until the start of the next.