It is amazing that the little boy can swim ________the river ________100 meters wide.
I don’t remember how many years ago _______I last showed you around the farm.
After the war, a new school was put up____________ there had once been a theatre.
The test____________ , we began our holiday.
—Why does she always ask you for help? —There is no one else _______, is there?
Please go _________the ship quickly. There is only fifteen minutes left.