11.   The Decision to have an operation should be up to the individual involved.

12.   The doctor says I must have an operation.

13.   The doctors said she was too weak to have an operation.

14.   The worst-case scenario was that he would have to have an operation.

15.   When she was thirty-six, she had had an operation to repair a uterine prolapse.

16.   He had to go in to have an operation on his eye.

17.   He had an operation to reduce the swelling in his brain.

18.   She had an operation on her knee at the clinic.

19.   She had to have the operation, or she would die.