Having a trip abroad is certainly good for the old couple, but it remains_________ whether they will enjoy it.
We have the most population in the world, most of it _____ farmers.
_____ at the back of the theatre, the girl couldn’t see ZhouJielun clearly.
The direction_____ which the president would go was kept a secret_____ safety concern.
It rained heavily in the south, _____ serious flooding in several provinces.
Dr. Peter Spence, _____ headmaster of the school, told us, “_____ fifth of pupils here will go on to study at Oxford and Cambridge.”