I bought a bike so that I could save time to go to school.(改为同义句)急

I bought a bike so that I could save time to go to school.(改为同义句)急
I bought a bike so that I could save time to go to school.(改为同义句)
急

I bought a bike so that I could save time to go to school.(改为同义句)急
I bought a bike in order to save time to go to school.

I bought a bike in order to save time to go to school.