David left word with my secretary ________ he would call on me in the afternoon.
—Hi, David, I heard you had an accident this morning. —Yes.Luckily, I hit the brakes in time ______ I would have been injured badly.
It is well-known to us all that knowledge is __ treasure, but practice is ___ key to it.
— Do you have Mary's address? — Sorry, I don't have it ______ me at present.
.Tom took the police to the spot ____ the accident happened.
You think you’re poor, but look at people in really poor countries—it’s all ____.