The adjectives in the sentence are:
Note: The word 'behind' can function as an adjective, but in the example sentence it is used as a preposition (below his father, behind his father).
The adjectives in this sentence are "young," "his," "a," and "moderate."
young, his, a, moderate
It's a preposition.
Adjectives describe people, places or things. In the given sentence only two words describe people or places or things. The phrase "behind the garage" indicates where the truck was parked. That makes it a adverbial. The verbial "was parked" is a past perfect form of a verb. The word truck is the subject ( a simple noun) of the sentence. That leaves the words the red. Both the and red describe the subject truck. (Which truck? The red one.) Red is a common adjective describing color. The is a determiner, which arguably is a form of an adjective. But unless you are in college, the answer your teacher wants is red.
A brawny man emerges from behind her hanging clothes.
the monorail service to town starts just behind that hotel
young, his, a, moderate
the commas go between items in a series, between adjectives, and behind a dependent clause.
behind
No, the correct sentence should be: "This pen is behind the book."
In the sentence "She looked behind," "behind" functions as a preposition indicating the location where she looked.
"Behind the door" could be a complete sentence, like in the answer to a question asking where something was.
Look out behind you.The keys are behind the sugar jar.
Don't be left behind.
It's a preposition.
He was supposed to be there at seven, but he was running behind. In the hurry to evacuate, his laptop was left behind.
I looked behind the "shrub" when I saw a bunny fly out from behind me.
behind the green chest