Explain the subject-verb agreement rule that applies to a singular collective subject functioning as a single unit. demonstrate your understanding of the rule by composing a sentence that uses the singular collective subject "audience."

Subject-verb agreement happens in the simple present tense when the subject is a third person (a He, a She, or an It) and the verb is added an S, an ES, or IES to the ending of such verb, for example:

My Father works in a Bank. Subject + VerbS

In this case the verb is added an S because the subject “my father” is a “HE” and by having that done, there is a subject-verb agreement.

The very same happens with the singular collective subjects functioning as a single unit.

The audience admires the performance with the same astonishment every year.

The audience= singular subject

admires= verb in the third person

i think the life is invaluable.

you can also say immeasurable.