Answer the following questions based on the song lyrics in Activity 8.

Graduation (Friends Forever)
(By: Vitamin C)

(Source: https://images.genius.com/a801215f472f87 3403b974a74222ee7e.1000x1000x1.jpg, downloaded .September 24, 2019)

And so we talked all night about the rest of our lives
Where we're gonna be when we turn twenty-five
I keep thinking times will never change
Keep on thinking things will always be the same

But when we leave this year we won't be coming backn
No more hanging out 'cause we're on a different track
And if you got something that you need to say
You better say it right now 'cause you don't have another day

'Cause we're moving on and we can't slow down
These memories are playing like a film without sound
And I keep thinking of that night in June
I didn't know much of love but it came too soon

And there was me and you
And then we got real blue
Stay at home talking on the telephone
And we would get so excited and we'd get so scared
Laughing at ourselves thinking life's not fair
And this is how it feels

*)
As we go on
We remember
All the times we
Had together
And as our lives change
Come whatever
We will still be
Friends forever

So if we get the big jobs
And we make the big money
When we look back now
Will our jokes still be funny?
Will we stip remember everything we learned in school?
Still be trying to break every single rule

Will little brainy Bobby be the stockbroker man?
Can Heather find a job that won't interfere with her tan?
I keep, keep thinking that it's not goodbye
Keep on thinking it's a time to fly
And this is how it feels

Back *)
We will still be friends forever
Will we think about tomorrow like we think about now?
Can we survive it out there?
Can we make it somehow?
I guess I thought that this would never end
And suddenly it's like we're women and men

Will the past be a shadow that will follow us around?
Will these memories fade when I leave this town
I keep, keep thinking that it's not goodbye
Keep on thinking it's a time to fly

Back *) 3x

(Adopted from: https://www.azlyrics.com/lyrics/vitaminc/graduationfriendsforever.html (July 30, 2019))

"Keep on thinking it's a time to fly" (Last line)

What does it mean?