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Question

Difficulty: MediumSubject-Verb Agreement (Concord)

Fill in the blank with the correct present-tense form of the auxiliary verb that satisfies the rules of grammatical concord.

Answer:Ten thousand naira 【is】 the exact amount required to register for the national examination.

Answer

The correct verb form is 'is'.
In formal English grammar, expressions specifying amounts of money, distance, mass, or time function as single collective units and require singular verbs. Therefore, the singular auxiliary verb 'is' is correct.

Step-by-Step Solution

1
Analyze the subject of the sentence to determine its grammatical number.
The subject 'Ten thousand naira' represents a total sum of money.
Nouns indicating specific amounts of money, periods of time, distances, or measurements are treated as a single unified quantity.
2
Apply the rule of concord for monetary amounts.
A singular verb must follow a subject representing a singular sum of money.
Subject-verb agreement requires a singular subject concept to agree with a singular verb form.
3
Select the correct present-tense singular verb form.
The singular verb 'is' correctly completes the sentence.
'is' agrees in number and tense with the singular concept of a single monetary sum.

Key Concept

Subject-Verb Concord with Expressions of Amount and Money
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Topics

Subject-Verb Agreement (Concord)

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