______ other day, I was doing some shopping at the Wal-Mark when I heard my name called.
We hadn't met for 20 years, but I recognized her_____ I saw her.
There were many more people who got injured in the big fire than _______.
This robot is supposed to save a lot of labor, but it remains a problem if it ______.
George applied for the position three times ______ he finally got it.
With his eyes ______ on the family album, he thought of the fun he had when he lived with his parents.