Flying kites, ______ some researchers point out, can not only bring about joy to us, but also promote our physical and mental health.
When such an organised group became too large for its members to travel together comfortably, it would __________.
My junior middle school teacher had a great influence __________ my career.
I don't mind her criticizing me, but __________ is how she does it that I object to.
That was really a splendid evening. It's years __________ I enjoyed myself so much.
Anyone who has spent time with children knows the difference in the way boys and girls respond to __________ situations.