Everyone queued up before the booking office in silence, having nothing to do but _________.
It _____ that he was late for the train.
His mother _____ teacher.
His father _____ that older than he really is.
___the people have become the master of their own country___science can really serve the people.
—— Few children are as bright as he is, and also, he works very hard. —— It’s no _____ that he always gets the first place in any examination.