_________ one has a child will one realize how great one’s parents are.
.When it _________ high technology, he is completely at a loss.
.This is a reading room, boy, you must act in the way______ won’t disturb others.
.The warmth of ______ sweater will of course be determined by the sort of ______wool used.
.Our meeting room is ______ theirs.
.— Where is the hospital?— It’s about 500 meters ______ the school.