2.They were building a bridge across the river, _______ bridge which was intended to carry a great deal of _______ traffic.
There seems to be two causes as I try to figure out __________ that prevents so many children from being as happy as before.
We were struck by the limited use __________ their natural resources.
Cook was a strict but good captain, __________ usually took care of the sailors on his ship.
---How long do you think it will be __________ China sends a manned spaceship to the moon? --- Perhaps two or three years.
You’d better take something to read when you go to see the doctor __________ you have to wait.