"The" specifies a particular person, place or thing, e.g., "The boy is standing there," vs. an unspecified person, place or thing, e.g., "A tree is a plant."
My father didn't give my allowance for this week.
Correct usage of the word 'just?'
No, it is not. The "question word," why, should be at the beginning of the sentence. Why was she promoted?
The doctor has left the building. There is a sentence using the word "doctor" correctly.
I have a dream. (Noun) I dream of better days. (Verb)
Yes, it's the correct use of the word 'wise' but the sentence needs a comma after the initial phrase: As far as you have seen, your seniors are so wise.
No.
A car is a good usage for adults.
As head of the CIA, he was in charge of overseeing the interrogation of many high-risk informants. This sentence is entirely made up, but the usage is correct.
Either is correct usage, but the first word is spelled "It's."
yes it is.
What is your father is not a correct sentence. The word father is not a what but a who. The correct way to word it would be, who is your father?