I have had a go at transcribing this one, a very quick run through so feel free to improve

Must I evolve?

Must I change?

Must I develop?

Can I stay the same?

Must I grow up?

Must I grow old?

Must I join in?

And do as I'm told?

Must I mature?

I can't be so sure

Must I evolve?

Must I endure?

One ???

Made ???

Actually, more ???

??? something went on

That was the first time

???

Now we are growing

None of us knowing

Where we are going

Must I evolve?

Must I change?

Must I develop?

Can I stay the same?

Now we're proud of ourselves

We're two single cells

Now we get excited

Cells start dividing

A new organism

Now we can go swimming

Now is the time

To come out of the water

Puffing and panting onto dry land

I stood alone on a rocky shoreline

On my two feet for the very first time

And I'm so glad 

Digging a hole

You're looking for trouble

You're looking for shelter

????

We moved in together

You painted a wall

I discovered fire

Even giants started small

Must I evolve?

Must I change?

Must I develop?

Can I stay the same?

Must I grow up?

Must I grow old?

Must I join in?

And do as I'm told?

Must I mature?

I can't be so sure

Must I evolve?

Must I endure?

We're back in the stone age

Back in the stone age

Was a man in a cave

Out of your mind - at a rave

I walked through a tunnel

Backwards through time

Dragging my knuckles

Listening to Frankie Knuckles

Someone has lost their drugs in the long grass

Cars drive past, the occasional ???

I entered a dance-off

You lost your head-off

After ???

A horse ???

After the race

I looked at your face

The universe has multiplied

Suddenly, we're not satisfied

The caverns underground ??? are forming

Someone is wearing hotpants in the morning

And we are growing taller and taller 

Taller and taller 

Taller and taller 

Taller and taller 

Taller and taller 

Taller and taller 

Taller and taller 

Taller and taller 

Must I evolve?

Must I change?

Must I develop?

Can I stay the same?

Must I grow up?

Must I grow old?

Must I join in?

And do as I'm told?

Must I mature?

I can't be so sure

Must I evolve?

Must I endure?