Question

ten kilometers ___ a long distance to walk (be)​

Answer 1

Answer:

Is

Explanation:

In this sentence, we would be understanding the subject-verb agreement. The rule states that when the plural noun denotes some specific quantity or amount of consideration as a whole, the verb is generally singular. In this case, Fifteen kilometers is taken as a whole.  

"Is" is a singular verb. It is the correct answer.

Answer 2

Question :

Ten kilometers ___ a long distance to walk.

Fill in the blank with be verb.

Answer :

Ten kilometers is a long distance to walk .

• Even though 'Ten kilometers' is plural , we use singular verb 'is' since we take 'ten kilometers' as a single unit.

• Distance, time , amount all are considered as single units, hence we use singular be-verb even though the subject is plural.

• We use the Simple Present form of the given be-verb.

• Tenses are of three kinds : Past , Present , Future.

• Each kind of tense is further sub divided into four sub parts : Simple , Continuous , Perfect and Perfect Continuous.

• So, the final answer is Ten kilometers is a long distance to walk .

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