what is the simple predicate of these household pests get into everything?
Simple predicate = verb. In this sentence it's one word that tells what the subject (pests) is doing. Do you see it?
The simple predicate of the sentence "These household pests get into everything" is "get."
To determine the simple predicate, you need to identify the verb in the sentence and then determine its tense and form. In this case, the verb is "get." The subject of the sentence is "these household pests," and the verb "get" tells us what the pests do. It expresses the action of the pests getting into everything.
To find the simple predicate of a sentence, identify the verb or verb phrase and focus on the action or condition it describes.