The patient was ___of losing his life and had to be operated on at once

Is this the reason _____at the meeting for hiscarelessness in his work

We didn’t know anything about it _______ you told us what happened.

There’s someone knocking on the door. Who _____itbe— Itmust be Mary. She promised to be here at 8：00.

The captain ____ the crews beforehim, telling them to get ready for thesailing.[ ]