The answer is a since it could have a different meani
should be birds eye view at least i think so... tell me if i am wrong though..
Answer:
an important event in the author's life
Explanation:
relative clause
it modifies noun phrase by some grammatical tools
example
my friend who is coming from America is coming to the dinner
here who is used to indicate the noun phrase
subject verb agreement
A subject and a verb must agree, even when other words or phrases come between them.
example
The flock of geese is flying south for the winter.
The subject is flock, so the verb should be is flying.
Are you supposed to do it in past tense?
Then it would be:
13. Fit
14. Ran
15. Fed