Fill in the blank with the correct form of the word:
Tomorrow is a holiday. The offices ____ (remain- correct form of verb) closed.

Hint: We use the simple future tense to indicate an action that will begin and end in the future itself. The simple future tense denotes something that is bound to happen in the future.

Complete answer:As given in the hint, the simple future tense functions with the help of the modal auxiliary verb- will.
Let us look at the structure and usage of the simple future tense-
Structure- Subject + will + base form of the verb + object
For example- Our school will be closed tomorrow. Here, we can see the usage of ‘will be’ which indicates that the action will begin and end in the future itself.
Structure of negative simple future tense- Subject + will + not + base form of the verb + object
For example- He will not stay here tomorrow.
Structure of interrogative simple future tense- Will + subject + base form of the verb + object +?
For example- Will he stay here tomorrow?
In the given question- We can conclude that tomorrow is a holiday. The offices will remain closed. Here, we have used the simple future tense of the verb, ‘remain’ to indicate an action that will take place in the future.

Note: Keep in mind, we generally use the simple future tense to indicate something which we aren’t sure of. For example- I will think about it.