Final answer:
In this English question, the student is asked to complete sentences with the plural form of the given word in brackets. The correct plural forms for child and foot are children and feet, respectively.
Step-by-step explanation:
In this question, the student is asked to complete sentences with the plural form of the given word in brackets. The first sentence is "The plinal commorun to the park." (child). The correct plural form of child is children, so the sentence should read "The children commorun to the park." The second sentence is "Your have grown; you need new boots." (foot). The correct plural form of foot is feet, so the sentence should read "Your feet have grown; you need new boots."
Learn more about Using irregular plural nouns