1. operated
He was operated on yesterday.
I got a stomach tumor and had to have it operated on.
He was operated on for lung cancer.
The surgeon operated on the patient.
My brother may have to be operated on for the knee injury.
We had to sell the building because for years we operated it in the red.
He decided to be operated on.
He operated the new machine.
They operated an oil well.
Several factors operated to help prices go up.
This store is operated on a cash basis.
He taught me how the machine operated.
She chose to be operated on.
The surgeon operated on her for lung cancer.
It seems that in Japan too, electric taxis will be operated by robots.