But he acknowledged that an investigation would be almost impossible during the current heavy fighting.

Reading is impossible during testing, but we are allowed to watch videotapes.

Church affiliated education was impossible during the communist era of Czechoslovakia.

"For me, it has become impossible during the week," he said.

Exports were impossible during those years, because trade sanctions imposed on Yugoslavia.

Bosch had seen enough dead people to know that literally nothing was impossible during the last breaths.

And no matter what, it should not require sustained attention, which is impossible during the yuletide season.

Further, coordination between tankers and infantry was almost impossible during battle, as they had no easy or reliable way to communicate with one another.

The Hellcat had never been so impossible as during the last weeks of her mourning.

Road travel often becomes impossible during this time.