Fill in the blanks with the most appropriate words.
I _____ in a crash when I _____ 10.
A verb is used to express an occurrence, action, or state. It is the grammatical centre of the predicate in a sentence.
An auxiliary verb is a verb which gives is used in the formation of tenses, moods, tones, etc.
Option D is correct as the subject is I, crash indicates something that happens unfortunately and when indicates time.
The other options are wrong as the sentence does not talk of the present (when, 10)
The correct answer is D) was/ was