Question

complete the sentence with the best subject.
as we watch, ______ marches into the kitchen and straight to the cookie tin.
the children
the child

Explanation:

The verb "marches" is in the third - person singular form. "the children" is a plural subject, and a plural subject should be paired with a plural verb (e.g., "march"). "the child" is a singular subject, and a singular subject is paired with a singular verb (e.g., "marches"). So we need to choose the singular subject "the child" to match the verb "marches".

Answer:

the child