Rewrite (using double comparison)

The apartment is big. The rent is high.

=> The bigger (a)  

Rewrite (using double comparison)

We set off soon. We will arrive soon.

=> The sooner (a)  

Rewrite (using double comparison)

She gets fat. She feels tired.

=> The fatter (a)  

Rewrite (using double comparison)

As he gets older, he wants to travel less.

=> The older (a)  

Rewrite (using double comparison)

The children are excited with the difficult games.

=> The more (a)  

Rewrite (using double comparison)

People drive fast. Many accidents happen.

=> The faster (a)  

Rewrite (using double comparison)

I meet him much. I hate him much

=> The more (a)  

Rewrite (using double comparison)

My boss works better when he is pressed for time

=> The less (a)  

Rewrite (using double comparison)

As he has much money, he wants to spend much.

=> The more (a)  

Rewrite (using double comparison)

If you read many books, you will have much knowledge.

=> The more (a)  

Rewrite (using double comparison)

He speaks too much and people feel bored.

=> The more (a)  

Rewrite (using double comparison)

The growth in the economy makes people's living condition better.

=> The more (a)  

Rewrite (using double comparison)

People learn a lot of things as they travel far.

=> The farther (a)