She did not have to know him to prove her case.
For, as things stood, he could not come out in the open to prove his case.
"It will be difficult for him to prove his case."
The Government has a long way to go to prove its case.
It can be expensive and difficult to prove your case.
But it is also right for Justice to have to prove its case in court.
"You can prove your case to those in a position to understand it?"
In the computer industry, they seem to have proved their case.
I was looking forward to proving my case to you.
For certain reasons I want to prove my case first.