It was quite a long time ______ I figured out what had happened to the manager.
---They are quiet, aren’t they? ---yes. They are accustomed ____at meals.
_____, I got better and returned to work.
It is already 10 o’clock. I wonder how it ______ that she was two hours later on such a short trip.
--Why does the lake smell terrible? ---Because large quantities of water ______.
—Miss Wang,I feel very nervous with the competition approaching. —________. As long as you can finish it,it is a victory.